-68.93% is the change from 721 to 224
Calculation steps:
[( 224 - 721 ) ÷ 721] x 100 = -68.93%
Formula
Percentage change = [(224 - 721) / 721] x 100
Subtract the new number by the original number
224 - 721 = -497
-497 ÷ 721 = -0.6893203883495146
-0.6893203883495146 x 100 = -68.93%