1700% is the change from 7 to 126
Calculation steps:
[( 126 - 7 ) ÷ 7] x 100 = 1700%
Formula
Percentage change = [(126 - 7) / 7] x 100
Subtract the new number by the original number
126 - 7 = 119
119 ÷ 7 = 17
17 x 100 = 1700%
Example