-28.9% is the change from 218 to 155
Calculation steps:
[( 155 - 218 ) ÷ 218] x 100 = -28.9%
Formula
Percentage change = [(155 - 218) / 218] x 100
Subtract the new number by the original number
155 - 218 = -63
-63 ÷ 218 = -0.2889908256880734
-0.2889908256880734 x 100 = -28.9%