-28.34% is the change from 727 to 521
Calculation steps:
[( 521 - 727 ) ÷ 727] x 100 = -28.34%
Formula
Percentage change = [(521 - 727) / 727] x 100
Subtract the new number by the original number
521 - 727 = -206
-206 ÷ 727 = -0.2833562585969739
-0.2833562585969739 x 100 = -28.34%