-91.63% is the change from 920 to 77
Calculation steps:
[( 77 - 920 ) ÷ 920] x 100 = -91.63%
Formula
Percentage change = [(77 - 920) / 920] x 100
Subtract the new number by the original number
77 - 920 = -843
-843 ÷ 920 = -0.9163043478260869
-0.9163043478260869 x 100 = -91.63%