-5.2% is the change from 615 to 583
Calculation steps:
[( 583 - 615 ) ÷ 615] x 100 = -5.2%
Formula
Percentage change = [(583 - 615) / 615] x 100
Subtract the new number by the original number
583 - 615 = -32
-32 ÷ 615 = -0.05203252032520325
-0.05203252032520325 x 100 = -5.2%