Question

this year you earned 75,500. Last year you earned $72,400. What was the rate of change on your earnings last year.

Answer 1

Given that:

this year you earned 75,500. Last year you earned $72,400.

So the rate of change on your earnings last year.:

$\begin{gathered} Avg_{rate}=\frac{75500-72400}{1\text{ year}} \\ Avg_{rate}=\frac{3100}{1} \\ Avg_{rate}=3100 \end{gathered}$

Hence the rate of change on your earnings last year is $3100