The calculator handles level monthly payments only: amount, annual rate and months go in; payment, total interest and total repaid come out. Fees, down payments and balloon payments are not part of it. Actual rates appear only in a funding partner's offer.
Three terms on one quote: a Lenawee County, MI home builder's tow-behind compressor and framing nailers
Illustration only, invented figures. A home builder in Lenawee County, MI has a $16,850 quote for a tow-behind air compressor and a set of framing nailers, and tries it at 11.9% a year over three terms. The totals here use the payment rounded to the cent:
| Term | Monthly payment | Total of payments | Interest |
|---|---|---|---|
| 36 months | $558.86 | $20,118.96 | $3,268.96 |
| 48 months | $442.90 | $21,259.20 | $4,409.20 |
| 60 months | $373.97 | $22,438.20 | $5,588.20 |
Reading across the table, each extra year lowers the payment but adds interest: the 60-month line pays $5,588.20 in interest against $3,268.96 for 36 months. The payment column is what the business budgets each month; the interest column is what the term costs over its life.
The term box takes months. Typing 5 for five years instead of 60 asks the calculator to clear the whole amount in five months, so the payment comes out far higher than intended.
One quote at three rates: aerators for a Lenawee County, MI landscaper
The calculator does not find a rate; it shows what a rate does to the payment. A Lenawee County, MI landscaper with a $9,450 quote for two aerators can run the same 36 months at three rates to see the spread (illustration only, invented figures):
| Annual rate | Monthly payment | Total of payments | Interest |
|---|---|---|---|
| 10.5% | $307.15 | $11,057.40 | $1,607.40 |
| 12% | $313.88 | $11,299.68 | $1,849.68 |
| 13.5% | $320.69 | $11,544.84 | $2,094.84 |
The real rate comes from a funding partner's offer, and the landscaper can type that figure in once it arrives.
A combi oven quote checked by an Adrian, MI limited-service restaurant before calling
Illustration only, invented figures. An Adrian, MI limited-service restaurant prices a $27,900 combi oven. Run at 10.8% for 60 months, the oven comes to $603.83 monthly, with $36,229.80 paid by the last month. The calculator has no down payment box, so if the restaurant puts $4,000 down it enters the remaining $23,900 instead: $517.26 a month and $31,035.60 over the term.
The invented $4,000 down payment trims interest from $8,329.80 to $7,135.60 over the five years, a difference of $1,194.20, at the price of cash leaving the business on day one. The water and electrical hookups for the oven are property work outside this site.
Total interest instead of yield: transmission jacks and an engine hoist for an Adrian, MI auto repair shop
A lender's yield is its own return; for the shop, the number that matters is total interest. Illustration only, invented figures: an Adrian, MI auto repair shop prices two transmission jacks and an engine hoist at $11,280. Paid off in two years at 12.4%, the tools cost $533.10 a month and $1,514.40 in interest. Spread across four years instead, each payment falls to $299.27 and interest rises to $3,084.96.
In exchange for a payment that is $233.83 lighter each month, the owner in this invented case pays $1,570.56 more in interest. The shop can weigh which matters more for its monthly cash.
By Valeshire Financial ยท Updated



