61.61% is the change from 409 to 661
Calculation steps:
[( 661 - 409 ) ÷ 409] x 100 = 61.61%
Formula
Percentage change = [(661 - 409) / 409] x 100
Subtract the new number by the original number
661 - 409 = 252
252 ÷ 409 = 0.6161369193154034
0.6161369193154034 x 100 = 61.61%