31.7% is the change from 511 to 673
Calculation steps:
[( 673 - 511 ) ÷ 511] x 100 = 31.7%
Formula
Percentage change = [(673 - 511) / 511] x 100
Subtract the new number by the original number
673 - 511 = 162
162 ÷ 511 = 0.31702544031311153
0.31702544031311153 x 100 = 31.7%