4.91% is the change from 509 to 534
Calculation steps:
[( 534 - 509 ) ÷ 509] x 100 = 4.91%
Formula
Percentage change = [(534 - 509) / 509] x 100
Subtract the new number by the original number
534 - 509 = 25
25 ÷ 509 = 0.04911591355599214
0.04911591355599214 x 100 = 4.91%