-18.03% is the change from 721 to 591
Calculation steps:
[( 591 - 721 ) ÷ 721] x 100 = -18.03%
Formula
Percentage change = [(591 - 721) / 721] x 100
Subtract the new number by the original number
591 - 721 = -130
-130 ÷ 721 = -0.18030513176144244
-0.18030513176144244 x 100 = -18.03%