66.5% is the change from 409 to 681
Calculation steps:
[( 681 - 409 ) ÷ 409] x 100 = 66.5%
Formula
Percentage change = [(681 - 409) / 409] x 100
Subtract the new number by the original number
681 - 409 = 272
272 ÷ 409 = 0.6650366748166259
0.6650366748166259 x 100 = 66.5%