-60.79% is the change from 630 to 247
Calculation steps:
[( 247 - 630 ) ÷ 630] x 100 = -60.79%
Formula
Percentage change = [(247 - 630) / 630] x 100
Subtract the new number by the original number
247 - 630 = -383
-383 ÷ 630 = -0.6079365079365079
-0.6079365079365079 x 100 = -60.79%