66.5% is the change from 403 to 671
Calculation steps:
[( 671 - 403 ) ÷ 403] x 100 = 66.5%
Formula
Percentage change = [(671 - 403) / 403] x 100
Subtract the new number by the original number
671 - 403 = 268
268 ÷ 403 = 0.6650124069478908
0.6650124069478908 x 100 = 66.5%