2342.86% is the change from 7 to 171
Calculation steps:
[( 171 - 7 ) ÷ 7] x 100 = 2342.86%
Formula
Percentage change = [(171 - 7) / 7] x 100
Subtract the new number by the original number
171 - 7 = 164
164 ÷ 7 = 23.428571428571427
23.428571428571427 x 100 = 2342.86%