-91.01% is the change from 812 to 73
Calculation steps:
[( 73 - 812 ) ÷ 812] x 100 = -91.01%
Formula
Percentage change = [(73 - 812) / 812] x 100
Subtract the new number by the original number
73 - 812 = -739
-739 ÷ 812 = -0.9100985221674877
-0.9100985221674877 x 100 = -91.01%