-40.2% is the change from 684 to 409
Calculation steps:
[( 409 - 684 ) ÷ 684] x 100 = -40.2%
Formula
Percentage change = [(409 - 684) / 684] x 100
Subtract the new number by the original number
409 - 684 = -275
-275 ÷ 684 = -0.402046783625731
-0.402046783625731 x 100 = -40.2%