270.37% is the change from 27 to 100
Calculation steps:
[( 100 - 27 ) ÷ 27] x 100 = 270.37%
Formula
Percentage change = [(100 - 27) / 27] x 100
Subtract the new number by the original number
100 - 27 = 73
73 ÷ 27 = 2.7037037037037037
2.7037037037037037 x 100 = 270.37%