-25.58% is the change from 215 to 160
Calculation steps:
[( 160 - 215 ) ÷ 215] x 100 = -25.58%
Formula
Percentage change = [(160 - 215) / 215] x 100
Subtract the new number by the original number
160 - 215 = -55
-55 ÷ 215 = -0.2558139534883721
-0.2558139534883721 x 100 = -25.58%