6.85% is the change from 511 to 546
Calculation steps:
[( 546 - 511 ) ÷ 511] x 100 = 6.85%
Formula
Percentage change = [(546 - 511) / 511] x 100
Subtract the new number by the original number
546 - 511 = 35
35 ÷ 511 = 0.0684931506849315
0.0684931506849315 x 100 = 6.85%