-27.62% is the change from 630 to 456
Calculation steps:
[( 456 - 630 ) ÷ 630] x 100 = -27.62%
Formula
Percentage change = [(456 - 630) / 630] x 100
Subtract the new number by the original number
456 - 630 = -174
-174 ÷ 630 = -0.2761904761904762
-0.2761904761904762 x 100 = -27.62%