-72.5% is the change from 811 to 223
Calculation steps:
[( 223 - 811 ) ÷ 811] x 100 = -72.5%
Formula
Percentage change = [(223 - 811) / 811] x 100
Subtract the new number by the original number
223 - 811 = -588
-588 ÷ 811 = -0.7250308261405672
-0.7250308261405672 x 100 = -72.5%