8.45% is the change from 509 to 552
Calculation steps:
[( 552 - 509 ) ÷ 509] x 100 = 8.45%
Formula
Percentage change = [(552 - 509) / 509] x 100
Subtract the new number by the original number
552 - 509 = 43
43 ÷ 509 = 0.08447937131630648
0.08447937131630648 x 100 = 8.45%