-76.56% is the change from 256 to 60
Calculation steps:
[( 60 - 256 ) ÷ 256] x 100 = -76.56%
Formula
Percentage change = [(60 - 256) / 256] x 100
Subtract the new number by the original number
60 - 256 = -196
-196 ÷ 256 = -0.765625
-0.765625 x 100 = -76.56%