2.24% is the change from 491 to 502
Calculation steps:
[( 502 - 491 ) ÷ 491] x 100 = 2.24%
Formula
Percentage change = [(502 - 491) / 491] x 100
Subtract the new number by the original number
502 - 491 = 11
11 ÷ 491 = 0.02240325865580448
0.02240325865580448 x 100 = 2.24%