-80.73% is the change from 628 to 121
Calculation steps:
[( 121 - 628 ) ÷ 628] x 100 = -80.73%
Formula
Percentage change = [(121 - 628) / 628] x 100
Subtract the new number by the original number
121 - 628 = -507
-507 ÷ 628 = -0.8073248407643312
-0.8073248407643312 x 100 = -80.73%