-31.12% is the change from 511 to 352
Calculation steps:
[( 352 - 511 ) ÷ 511] x 100 = -31.12%
Formula
Percentage change = [(352 - 511) / 511] x 100
Subtract the new number by the original number
352 - 511 = -159
-159 ÷ 511 = -0.3111545988258317
-0.3111545988258317 x 100 = -31.12%