-91.1% is the change from 809 to 72
Calculation steps:
[( 72 - 809 ) ÷ 809] x 100 = -91.1%
Formula
Percentage change = [(72 - 809) / 809] x 100
Subtract the new number by the original number
72 - 809 = -737
-737 ÷ 809 = -0.9110012360939431
-0.9110012360939431 x 100 = -91.1%