-29.22% is the change from 219 to 155
Calculation steps:
[( 155 - 219 ) ÷ 219] x 100 = -29.22%
Formula
Percentage change = [(155 - 219) / 219] x 100
Subtract the new number by the original number
155 - 219 = -64
-64 ÷ 219 = -0.2922374429223744
-0.2922374429223744 x 100 = -29.22%