-35.56% is the change from 630 to 406
Calculation steps:
[( 406 - 630 ) ÷ 630] x 100 = -35.56%
Formula
Percentage change = [(406 - 630) / 630] x 100
Subtract the new number by the original number
406 - 630 = -224
-224 ÷ 630 = -0.35555555555555557
-0.35555555555555557 x 100 = -35.56%