1285.71% is the change from 7 to 97
Calculation steps:
[( 97 - 7 ) ÷ 7] x 100 = 1285.71%
Formula
Percentage change = [(97 - 7) / 7] x 100
Subtract the new number by the original number
97 - 7 = 90
90 ÷ 7 = 12.857142857142858
12.857142857142858 x 100 = 1285.71%