-69.14% is the change from 512 to 158
Calculation steps:
[( 158 - 512 ) ÷ 512] x 100 = -69.14%
Formula
Percentage change = [(158 - 512) / 512] x 100
Subtract the new number by the original number
158 - 512 = -354
-354 ÷ 512 = -0.69140625
-0.69140625 x 100 = -69.14%