The formula gets rearranged depending on which variable you need. Here are the patterns you’ll run into in the real world — find the one that matches your problem and follow the worked steps.
01 · PATTERN
Loan ($) halved
loan = 160000 (from 320000)
Keep every other input at its default and halve the loan ($). See how closing costs responds.
- 01New Loan ($): 160000
- 02Baseline Closing costs: 9600
- 03New Closing costs: 4800
- 04Closing costs decreases by 50% → use this sensitivity to plan for real-world variation.
02 · PATTERN
Loan ($) doubled
loan = 640000 (from 320000)
Keep every other input at its default and double the loan ($). See how closing costs responds.
- 01New Loan ($): 640000
- 02Baseline Closing costs: 9600
- 03New Closing costs: 19200
- 04Closing costs increases by 100% → use this sensitivity to plan for real-world variation.
03 · PATTERN
Estimate % halved
pct = 1.5 (from 3)
Keep every other input at its default and halve the estimate %. See how closing costs responds.
- 01New Estimate %: 1.5
- 02Baseline Closing costs: 9600
- 03New Closing costs: 4800
- 04Closing costs decreases by 50% → use this sensitivity to plan for real-world variation.
04 · PATTERN
Estimate % doubled
pct = 6 (from 3)
Keep every other input at its default and double the estimate %. See how closing costs responds.
- 01New Estimate %: 6
- 02Baseline Closing costs: 9600
- 03New Closing costs: 19200
- 04Closing costs increases by 100% → use this sensitivity to plan for real-world variation.