-71.29% is the change from 512 to 147
Calculation steps:
[( 147 - 512 ) ÷ 512] x 100 = -71.29%
Formula
Percentage change = [(147 - 512) / 512] x 100
Subtract the new number by the original number
147 - 512 = -365
-365 ÷ 512 = -0.712890625
-0.712890625 x 100 = -71.29%