-83.76% is the change from 628 to 102
Calculation steps:
[( 102 - 628 ) ÷ 628] x 100 = -83.76%
Formula
Percentage change = [(102 - 628) / 628] x 100
Subtract the new number by the original number
102 - 628 = -526
-526 ÷ 628 = -0.8375796178343949
-0.8375796178343949 x 100 = -83.76%