31.95% is the change from 507 to 669
Calculation steps:
[( 669 - 507 ) ÷ 507] x 100 = 31.95%
Formula
Percentage change = [(669 - 507) / 507] x 100
Subtract the new number by the original number
669 - 507 = 162
162 ÷ 507 = 0.31952662721893493
0.31952662721893493 x 100 = 31.95%