-86.03% is the change from 630 to 88
Calculation steps:
[( 88 - 630 ) ÷ 630] x 100 = -86.03%
Formula
Percentage change = [(88 - 630) / 630] x 100
Subtract the new number by the original number
88 - 630 = -542
-542 ÷ 630 = -0.8603174603174604
-0.8603174603174604 x 100 = -86.03%