-28.21% is the change from 521 to 374
Calculation steps:
[( 374 - 521 ) ÷ 521] x 100 = -28.21%
Formula
Percentage change = [(374 - 521) / 521] x 100
Subtract the new number by the original number
374 - 521 = -147
-147 ÷ 521 = -0.2821497120921305
-0.2821497120921305 x 100 = -28.21%