17.34% is the change from 271 to 318
Calculation steps:
[( 318 - 271 ) ÷ 271] x 100 = 17.34%
Formula
Percentage change = [(318 - 271) / 271] x 100
Subtract the new number by the original number
318 - 271 = 47
47 ÷ 271 = 0.17343173431734318
0.17343173431734318 x 100 = 17.34%