-31.62% is the change from 721 to 493
Calculation steps:
[( 493 - 721 ) ÷ 721] x 100 = -31.62%
Formula
Percentage change = [(493 - 721) / 721] x 100
Subtract the new number by the original number
493 - 721 = -228
-228 ÷ 721 = -0.31622746185852985
-0.31622746185852985 x 100 = -31.62%