-29.31% is the change from 737 to 521
Calculation steps:
[( 521 - 737 ) ÷ 737] x 100 = -29.31%
Formula
Percentage change = [(521 - 737) / 737] x 100
Subtract the new number by the original number
521 - 737 = -216
-216 ÷ 737 = -0.2930800542740841
-0.2930800542740841 x 100 = -29.31%