3.44% is the change from 494 to 511
Calculation steps:
[( 511 - 494 ) ÷ 494] x 100 = 3.44%
Formula
Percentage change = [(511 - 494) / 494] x 100
Subtract the new number by the original number
511 - 494 = 17
17 ÷ 494 = 0.03441295546558704
0.03441295546558704 x 100 = 3.44%