345.24% is the change from 126 to 561
Calculation steps:
[( 561 - 126 ) ÷ 126] x 100 = 345.24%
Formula
Percentage change = [(561 - 126) / 126] x 100
Subtract the new number by the original number
561 - 126 = 435
435 ÷ 126 = 3.4523809523809526
3.4523809523809526 x 100 = 345.24%