-90.34% is the change from 797 to 77
Calculation steps:
[( 77 - 797 ) ÷ 797] x 100 = -90.34%
Formula
Percentage change = [(77 - 797) / 797] x 100
Subtract the new number by the original number
77 - 797 = -720
-720 ÷ 797 = -0.903387703889586
-0.903387703889586 x 100 = -90.34%