31.51% is the change from 511 to 672
Calculation steps:
[( 672 - 511 ) ÷ 511] x 100 = 31.51%
Formula
Percentage change = [(672 - 511) / 511] x 100
Subtract the new number by the original number
672 - 511 = 161
161 ÷ 511 = 0.3150684931506849
0.3150684931506849 x 100 = 31.51%