-17.81% is the change from 219 to 180
Calculation steps:
[( 180 - 219 ) ÷ 219] x 100 = -17.81%
Formula
Percentage change = [(180 - 219) / 219] x 100
Subtract the new number by the original number
180 - 219 = -39
-39 ÷ 219 = -0.1780821917808219
-0.1780821917808219 x 100 = -17.81%
Example