32.21% is the change from 506 to 669
Calculation steps:
[( 669 - 506 ) ÷ 506] x 100 = 32.21%
Formula
Percentage change = [(669 - 506) / 506] x 100
Subtract the new number by the original number
669 - 506 = 163
163 ÷ 506 = 0.3221343873517787
0.3221343873517787 x 100 = 32.21%