-88.46% is the change from 615 to 71
Calculation steps:
[( 71 - 615 ) ÷ 615] x 100 = -88.46%
Formula
Percentage change = [(71 - 615) / 615] x 100
Subtract the new number by the original number
71 - 615 = -544
-544 ÷ 615 = -0.8845528455284553
-0.8845528455284553 x 100 = -88.46%