-25.2% is the change from 512 to 383
Calculation steps:
[( 383 - 512 ) ÷ 512] x 100 = -25.2%
Formula
Percentage change = [(383 - 512) / 512] x 100
Subtract the new number by the original number
383 - 512 = -129
-129 ÷ 512 = -0.251953125
-0.251953125 x 100 = -25.2%