-82.64% is the change from 628 to 109
Calculation steps:
[( 109 - 628 ) ÷ 628] x 100 = -82.64%
Formula
Percentage change = [(109 - 628) / 628] x 100
Subtract the new number by the original number
109 - 628 = -519
-519 ÷ 628 = -0.8264331210191083
-0.8264331210191083 x 100 = -82.64%