-87.7% is the change from 984 to 121
Calculation steps:
[( 121 - 984 ) ÷ 984] x 100 = -87.7%
Formula
Percentage change = [(121 - 984) / 984] x 100
Subtract the new number by the original number
121 - 984 = -863
-863 ÷ 984 = -0.8770325203252033
-0.8770325203252033 x 100 = -87.7%