-15.43% is the change from 512 to 433
Calculation steps:
[( 433 - 512 ) ÷ 512] x 100 = -15.43%
Formula
Percentage change = [(433 - 512) / 512] x 100
Subtract the new number by the original number
433 - 512 = -79
-79 ÷ 512 = -0.154296875
-0.154296875 x 100 = -15.43%