2.29% is the change from 480 to 491
Calculation steps:
[( 491 - 480 ) ÷ 480] x 100 = 2.29%
Formula
Percentage change = [(491 - 480) / 480] x 100
Subtract the new number by the original number
491 - 480 = 11
11 ÷ 480 = 0.022916666666666665
0.022916666666666665 x 100 = 2.29%