-83.65% is the change from 630 to 103
Calculation steps:
[( 103 - 630 ) ÷ 630] x 100 = -83.65%
Formula
Percentage change = [(103 - 630) / 630] x 100
Subtract the new number by the original number
103 - 630 = -527
-527 ÷ 630 = -0.8365079365079365
-0.8365079365079365 x 100 = -83.65%