1742.86% is the change from 7 to 129
Calculation steps:
[( 129 - 7 ) ÷ 7] x 100 = 1742.86%
Formula
Percentage change = [(129 - 7) / 7] x 100
Subtract the new number by the original number
129 - 7 = 122
122 ÷ 7 = 17.428571428571427
17.428571428571427 x 100 = 1742.86%