Opportunity Cost Calculator

The Opportunity Cost Trip Calculator extension is a valuable tool for anyone looking to make informed decisions about their travel plans. By accounting for both the money you spend and the income you might miss out on, the extension helps you understand the real cost of your trips. Whether you're a freelancer, contractor, or simply someone who wants to budget effectively, this extension provides the insights you need to plan confidently.

Benefits of Using the Extension:

Comprehensive Financial Planning:
By considering both direct expenses and opportunity costs, you get a complete picture of your trip's financial impact.

Informed Decision-Making:
Understanding the true cost of your trip can help you make better decisions about budgeting and planning.

Time-Saving:
Automates complex calculations that would otherwise require manual effort.

Data Security:
All data is stored locally on your device; no information is transmitted externally.
Get Started Today:

Install the extension on your Chrome browser.
Begin by setting your first Sunday anchor and entering your daily rates.
Log your upcoming trips and take control of your financial planning.

If you have any questions or need assistance, please refer to this guide or contact support for help.

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How to Use the Extension:

Step 1: Set Your First Sunday Anchor

Select the Starting Sunday:
Upon opening the extension, locate the \"Select First Sunday\" date picker at the top.
Choose the first Sunday that marks the beginning of your three-week earnings schedule.
The date picker is restricted to Sundays to ensure accurate scheduling.
This Sunday will serve as the anchor point for your earnings over the next three weeks.
Step 2: Input Your Daily Rates

Edit Daily Rates:

Click the \"Edit Rates\" button to enable the daily rate input fields.
The rates are organized in a table format for each day of the week across three weeks.
Enter Your Earnings:

For each day, input your expected earnings:
Example: If you expect to earn $150 on Mondays during Week 1, enter \"150\" in the \"Monday - W1\" field.
Repeat this for all days across the three weeks as applicable.
Save Your Rates:

After entering your rates, click the \"Save Rates\" button.
The input fields will be disabled to prevent accidental changes.
Your rates are now saved to local storage and will persist across sessions.
Step 3: Log Your Trip Details

Fill in Trip Information:

In the \"Trip Details\" section, provide the following:
Trip Name: A descriptive title for your trip (e.g., \"Summer Vacation 2025\").
Trip Start Date: Select the starting date of your trip.
Trip End Date: Select the ending date of your trip.
Flight Cost: Enter the total cost of your flights.
Hotel Cost: Enter the total cost of your accommodations.
Other Costs: Include any additional expenses (e.g., car rentals, activities).
Flight URL (optional): Paste a link to your flight itinerary or booking.
Hotel URL (optional): Paste a link to your hotel reservation.
Other URL (optional): Include links to other relevant bookings or information.
Automatic Saving:

As you input your trip details, the information is automatically saved to local storage.
This ensures that your data is not lost if you close the extension before logging the trip.
Step 4: Calculate and Log Your Trip

Log the Trip:

Once all trip details are entered, click the \"Log Trip\" button at the bottom of the form.
The extension will calculate the opportunity cost based on your trip dates and daily rates.
Understanding the Calculation:

Opportunity Cost: The sum of expected earnings you forgo during the trip period.
Combined Cost: The total of your trip expenses plus the opportunity cost.
View Logged Trip:

After logging, your trip will appear in the \"Logged Trips\" section.
Details displayed include:
Trip name and dates.
Opportunity cost.
Flight, hotel, and other costs with links if provided.
Combined total cost.
Each trip entry allows you to review and manage your past trips effectively.
Step 5: Review and Manage Logged Trips

Multiple Trips:

You can log multiple trips, and they will all be listed in the \"Logged Trips\" section.
This allows you to compare different trips and their financial impacts.
Delete a Trip:

If you wish to remove a trip from the list, click the \"Delete\" button next to the trip entry.
The trip will be removed, and the list will update accordingly.
Additional Features and Notes:

Editing Rates After Logging Trips:

You can edit your daily rates at any time by clicking \"Edit Rates\".
Important: Changing daily rates will not affect the opportunity cost of trips already logged. The opportunity cost is calculated and stored at the time of logging.
Data Persistence:

All your inputs and logged trips are saved to your browser's local storage.
Your data will persist even if you close the browser or restart your computer.
Selecting a New Sunday Anchor:

If your earnings schedule changes, you can select a new first Sunday.
Note: Changing the Sunday anchor will not affect the opportunity cost calculations of previously logged trips.
User-Friendly Interface:

The extension is designed to be intuitive and straightforward.
Fields are clearly labeled, and essential actions like saving rates and logging trips are prominently displayed.
Example Use Case:

Set the Sunday Anchor:

You select Sunday, June 2, 2025 as your first Sunday.
Enter Daily Rates:

Week 1:
Monday: $200
Tuesday: $200
Wednesday: $200
Thursday: $200
Friday: $200
Saturday and Sunday: $0
Repeat similar entries for Weeks 2 and 3 if earnings differ.
Log Trip Details:

Trip Name: \"Conference in July\"
Trip Start Date: July 8, 2025
Trip End Date: July 12, 2025
Flight Cost: $300
Hotel Cost: $600
Other Costs: $200
Log the Trip:

Click \"Log Trip\".
The extension calculates the opportunity cost for July 8–12, 2025.
Opportunity Cost: Sum of expected earnings for Tuesday to Saturday of that week.
Combined Cost: Flight + Hotel + Other Costs + Opportunity Cost.
Review Logged Trip:

The trip appears in the \"Logged Trips\" section with all calculated details.