-91.08% is the change from 818 to 73
Calculation steps:
[( 73 - 818 ) ÷ 818] x 100 = -91.08%
Formula
Percentage change = [(73 - 818) / 818] x 100
Subtract the new number by the original number
73 - 818 = -745
-745 ÷ 818 = -0.910757946210269
-0.910757946210269 x 100 = -91.08%