2300% is the change from 7 to 168
Calculation steps:
[( 168 - 7 ) ÷ 7] x 100 = 2300%
Formula
Percentage change = [(168 - 7) / 7] x 100
Subtract the new number by the original number
168 - 7 = 161
161 ÷ 7 = 23
23 x 100 = 2300%
Example