-57.1% is the change from 324 to 139
Calculation steps:
[( 139 - 324 ) ÷ 324] x 100 = -57.1%
Formula
Percentage change = [(139 - 324) / 324] x 100
Subtract the new number by the original number
139 - 324 = -185
-185 ÷ 324 = -0.5709876543209876
-0.5709876543209876 x 100 = -57.1%