-64.22% is the change from 218 to 78
Calculation steps:
[( 78 - 218 ) ÷ 218] x 100 = -64.22%
Formula
Percentage change = [(78 - 218) / 218] x 100
Subtract the new number by the original number
78 - 218 = -140
-140 ÷ 218 = -0.6422018348623854
-0.6422018348623854 x 100 = -64.22%