Cost of Saving

Worked examples / Buying something

A tool

A $150 cordless drill kept five years, used six times a year, when renting is $25 a time.

Worth it

It costs you $4.00 a use. The other way is $25.00.

Buying costs$120$150 less $30 back
Paying each time$75030 x $25.00
Put in your own numbers

This is a worked example with illustrative figures, not data about any real person or company. Change any of them in the calculator and the answer changes with them.

How this answer was worked out

Net cost$150 - $30 = $120
Total uses6 x 5 = 30
Cost per use$120 / 30 = $4.00
Uses to break even4.8
Paying each time$750

Every formula is written out on the formulas page.

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