49.63% is the change from 270 to 404
Calculation steps:
[( 404 - 270 ) ÷ 270] x 100 = 49.63%
Formula
Percentage change = [(404 - 270) / 270] x 100
Subtract the new number by the original number
404 - 270 = 134
134 ÷ 270 = 0.4962962962962963
0.4962962962962963 x 100 = 49.63%