-84.7% is the change from 791 to 121
Calculation steps:
[( 121 - 791 ) ÷ 791] x 100 = -84.7%
Formula
Percentage change = [(121 - 791) / 791] x 100
Subtract the new number by the original number
121 - 791 = -670
-670 ÷ 791 = -0.8470290771175727
-0.8470290771175727 x 100 = -84.7%