106.6% is the change from 409 to 845
Calculation steps:
[( 845 - 409 ) ÷ 409] x 100 = 106.6%
Formula
Percentage change = [(845 - 409) / 409] x 100
Subtract the new number by the original number
845 - 409 = 436
436 ÷ 409 = 1.0660146699266504
1.0660146699266504 x 100 = 106.6%