41.1% is the change from 438 to 618
Calculation steps:
[( 618 - 438 ) ÷ 438] x 100 = 41.1%
Formula
Percentage change = [(618 - 438) / 438] x 100
Subtract the new number by the original number
618 - 438 = 180
180 ÷ 438 = 0.410958904109589
0.410958904109589 x 100 = 41.1%