-86.97% is the change from 921 to 120
Calculation steps:
[( 120 - 921 ) ÷ 921] x 100 = -86.97%
Formula
Percentage change = [(120 - 921) / 921] x 100
Subtract the new number by the original number
120 - 921 = -801
-801 ÷ 921 = -0.8697068403908795
-0.8697068403908795 x 100 = -86.97%