130.3% is the change from 99 to 228
Calculation steps:
[( 228 - 99 ) ÷ 99] x 100 = 130.3%
Formula
Percentage change = [(228 - 99) / 99] x 100
Subtract the new number by the original number
228 - 99 = 129
129 ÷ 99 = 1.303030303030303
1.303030303030303 x 100 = 130.3%