-66.51% is the change from 218 to 73
Calculation steps:
[( 73 - 218 ) ÷ 218] x 100 = -66.51%
Formula
Percentage change = [(73 - 218) / 218] x 100
Subtract the new number by the original number
73 - 218 = -145
-145 ÷ 218 = -0.6651376146788991
-0.6651376146788991 x 100 = -66.51%