3.85% is the change from 493 to 512
Calculation steps:
[( 512 - 493 ) ÷ 493] x 100 = 3.85%
Formula
Percentage change = [(512 - 493) / 493] x 100
Subtract the new number by the original number
512 - 493 = 19
19 ÷ 493 = 0.038539553752535496
0.038539553752535496 x 100 = 3.85%