-28.02% is the change from 521 to 375
Calculation steps:
[( 375 - 521 ) ÷ 521] x 100 = -28.02%
Formula
Percentage change = [(375 - 521) / 521] x 100
Subtract the new number by the original number
375 - 521 = -146
-146 ÷ 521 = -0.2802303262955854
-0.2802303262955854 x 100 = -28.02%