-90.61% is the change from 809 to 76
Calculation steps:
[( 76 - 809 ) ÷ 809] x 100 = -90.61%
Formula
Percentage change = [(76 - 809) / 809] x 100
Subtract the new number by the original number
76 - 809 = -733
-733 ÷ 809 = -0.9060568603213844
-0.9060568603213844 x 100 = -90.61%