-69.07% is the change from 721 to 223
Calculation steps:
[( 223 - 721 ) ÷ 721] x 100 = -69.07%
Formula
Percentage change = [(223 - 721) / 721] x 100
Subtract the new number by the original number
223 - 721 = -498
-498 ÷ 721 = -0.6907073509015257
-0.6907073509015257 x 100 = -69.07%