-81.25% is the change from 512 to 96
Calculation steps:
[( 96 - 512 ) ÷ 512] x 100 = -81.25%
Formula
Percentage change = [(96 - 512) / 512] x 100
Subtract the new number by the original number
96 - 512 = -416
-416 ÷ 512 = -0.8125
-0.8125 x 100 = -81.25%