64.02% is the change from 403 to 661
Calculation steps:
[( 661 - 403 ) ÷ 403] x 100 = 64.02%
Formula
Percentage change = [(661 - 403) / 403] x 100
Subtract the new number by the original number
661 - 403 = 258
258 ÷ 403 = 0.6401985111662531
0.6401985111662531 x 100 = 64.02%