-28.73% is the change from 731 to 521
Calculation steps:
[( 521 - 731 ) ÷ 731] x 100 = -28.73%
Formula
Percentage change = [(521 - 731) / 731] x 100
Subtract the new number by the original number
521 - 731 = -210
-210 ÷ 731 = -0.2872777017783858
-0.2872777017783858 x 100 = -28.73%