1628.57% is the change from 7 to 121
Calculation steps:
[( 121 - 7 ) ÷ 7] x 100 = 1628.57%
Formula
Percentage change = [(121 - 7) / 7] x 100
Subtract the new number by the original number
121 - 7 = 114
114 ÷ 7 = 16.285714285714285
16.285714285714285 x 100 = 1628.57%