-86.9% is the change from 924 to 121
Calculation steps:
[( 121 - 924 ) ÷ 924] x 100 = -86.9%
Formula
Percentage change = [(121 - 924) / 924] x 100
Subtract the new number by the original number
121 - 924 = -803
-803 ÷ 924 = -0.8690476190476191
-0.8690476190476191 x 100 = -86.9%