-28.41% is the change from 521 to 373
Calculation steps:
[( 373 - 521 ) ÷ 521] x 100 = -28.41%
Formula
Percentage change = [(373 - 521) / 521] x 100
Subtract the new number by the original number
373 - 521 = -148
-148 ÷ 521 = -0.2840690978886756
-0.2840690978886756 x 100 = -28.41%