1300% is the change from 9 to 126
Calculation steps:
[( 126 - 9 ) ÷ 9] x 100 = 1300%
Formula
Percentage change = [(126 - 9) / 9] x 100
Subtract the new number by the original number
126 - 9 = 117
117 ÷ 9 = 13
13 x 100 = 1300%
Example