68.7% is the change from 409 to 690
Calculation steps:
[( 690 - 409 ) ÷ 409] x 100 = 68.7%
Formula
Percentage change = [(690 - 409) / 409] x 100
Subtract the new number by the original number
690 - 409 = 281
281 ÷ 409 = 0.687041564792176
0.687041564792176 x 100 = 68.7%