-68.36% is the change from 512 to 162
Calculation steps:
[( 162 - 512 ) ÷ 512] x 100 = -68.36%
Formula
Percentage change = [(162 - 512) / 512] x 100
Subtract the new number by the original number
162 - 512 = -350
-350 ÷ 512 = -0.68359375
-0.68359375 x 100 = -68.36%