-57.7% is the change from 409 to 173
Calculation steps:
[( 173 - 409 ) ÷ 409] x 100 = -57.7%
Formula
Percentage change = [(173 - 409) / 409] x 100
Subtract the new number by the original number
173 - 409 = -236
-236 ÷ 409 = -0.5770171149144254
-0.5770171149144254 x 100 = -57.7%