400% is the change from 126 to 630
Calculation steps:
[( 630 - 126 ) ÷ 126] x 100 = 400%
Formula
Percentage change = [(630 - 126) / 126] x 100
Subtract the new number by the original number
630 - 126 = 504
504 ÷ 126 = 4
4 x 100 = 400%
Example