-5.9% is the change from 271 to 255
Calculation steps:
[( 255 - 271 ) ÷ 271] x 100 = -5.9%
Formula
Percentage change = [(255 - 271) / 271] x 100
Subtract the new number by the original number
255 - 271 = -16
-16 ÷ 271 = -0.05904059040590406
-0.05904059040590406 x 100 = -5.9%