-91.27% is the change from 836 to 73
Calculation steps:
[( 73 - 836 ) ÷ 836] x 100 = -91.27%
Formula
Percentage change = [(73 - 836) / 836] x 100
Subtract the new number by the original number
73 - 836 = -763
-763 ÷ 836 = -0.9126794258373205
-0.9126794258373205 x 100 = -91.27%