-22.66% is the change from 512 to 396
Calculation steps:
[( 396 - 512 ) ÷ 512] x 100 = -22.66%
Formula
Percentage change = [(396 - 512) / 512] x 100
Subtract the new number by the original number
396 - 512 = -116
-116 ÷ 512 = -0.2265625
-0.2265625 x 100 = -22.66%