170.71% is the change from 99 to 268
Calculation steps:
[( 268 - 99 ) ÷ 99] x 100 = 170.71%
Formula
Percentage change = [(268 - 99) / 99] x 100
Subtract the new number by the original number
268 - 99 = 169
169 ÷ 99 = 1.707070707070707
1.707070707070707 x 100 = 170.71%