-89.15% is the change from 710 to 77
Calculation steps:
[( 77 - 710 ) ÷ 710] x 100 = -89.15%
Formula
Percentage change = [(77 - 710) / 710] x 100
Subtract the new number by the original number
77 - 710 = -633
-633 ÷ 710 = -0.8915492957746479
-0.8915492957746479 x 100 = -89.15%