-68.52% is the change from 721 to 227
Calculation steps:
[( 227 - 721 ) ÷ 721] x 100 = -68.52%
Formula
Percentage change = [(227 - 721) / 721] x 100
Subtract the new number by the original number
227 - 721 = -494
-494 ÷ 721 = -0.6851595006934813
-0.6851595006934813 x 100 = -68.52%