-67.62% is the change from 630 to 204
Calculation steps:
[( 204 - 630 ) ÷ 630] x 100 = -67.62%
Formula
Percentage change = [(204 - 630) / 630] x 100
Subtract the new number by the original number
204 - 630 = -426
-426 ÷ 630 = -0.6761904761904762
-0.6761904761904762 x 100 = -67.62%