2.35% is the change from 511 to 523
Calculation steps:
[( 523 - 511 ) ÷ 511] x 100 = 2.35%
Formula
Percentage change = [(523 - 511) / 511] x 100
Subtract the new number by the original number
523 - 511 = 12
12 ÷ 511 = 0.023483365949119372
0.023483365949119372 x 100 = 2.35%