Answer:
3.59%
Step-by-step explanation:
Given the following
Amount earned this year = $75000
Amount earned last year = $72,400
Increment = 75000 - 72400
Increment = $2600
Rate of change = Increment/amount earned last year * 100%
Rate of change = 2600/72400 * 100
Rate of change = 26/724 * 100
Rate of change = 2600/724
Rate of change = 3.59%
Hence the rate of change on your earnings last year is 3.59%