-43.57% is the change from 319 to 180
Calculation steps:
[( 180 - 319 ) ÷ 319] x 100 = -43.57%
Formula
Percentage change = [(180 - 319) / 319] x 100
Subtract the new number by the original number
180 - 319 = -139
-139 ÷ 319 = -0.43573667711598746
-0.43573667711598746 x 100 = -43.57%