-32.25% is the change from 521 to 353
Calculation steps:
[( 353 - 521 ) ÷ 521] x 100 = -32.25%
Formula
Percentage change = [(353 - 521) / 521] x 100
Subtract the new number by the original number
353 - 521 = -168
-168 ÷ 521 = -0.32245681381957775
-0.32245681381957775 x 100 = -32.25%