-94.34% is the change from 512 to 29
Calculation steps:
[( 29 - 512 ) ÷ 512] x 100 = -94.34%
Formula
Percentage change = [(29 - 512) / 512] x 100
Subtract the new number by the original number
29 - 512 = -483
-483 ÷ 512 = -0.943359375
-0.943359375 x 100 = -94.34%