131.31% is the change from 99 to 229
Calculation steps:
[( 229 - 99 ) ÷ 99] x 100 = 131.31%
Formula
Percentage change = [(229 - 99) / 99] x 100
Subtract the new number by the original number
229 - 99 = 130
130 ÷ 99 = 1.3131313131313131
1.3131313131313131 x 100 = 131.31%