-72.03% is the change from 615 to 172
Calculation steps:
[( 172 - 615 ) ÷ 615] x 100 = -72.03%
Formula
Percentage change = [(172 - 615) / 615] x 100
Subtract the new number by the original number
172 - 615 = -443
-443 ÷ 615 = -0.7203252032520325
-0.7203252032520325 x 100 = -72.03%