-60.35% is the change from 512 to 203
Calculation steps:
[( 203 - 512 ) ÷ 512] x 100 = -60.35%
Formula
Percentage change = [(203 - 512) / 512] x 100
Subtract the new number by the original number
203 - 512 = -309
-309 ÷ 512 = -0.603515625
-0.603515625 x 100 = -60.35%