81.48% is the change from 27 to 49
Calculation steps:
[( 49 - 27 ) ÷ 27] x 100 = 81.48%
Formula
Percentage change = [(49 - 27) / 27] x 100
Subtract the new number by the original number
49 - 27 = 22
22 ÷ 27 = 0.8148148148148148
0.8148148148148148 x 100 = 81.48%