-73.33% is the change from 836 to 223
Calculation steps:
[( 223 - 836 ) ÷ 836] x 100 = -73.33%
Formula
Percentage change = [(223 - 836) / 836] x 100
Subtract the new number by the original number
223 - 836 = -613
-613 ÷ 836 = -0.7332535885167464
-0.7332535885167464 x 100 = -73.33%