-78.9% is the change from 218 to 46
Calculation steps:
[( 46 - 218 ) ÷ 218] x 100 = -78.9%
Formula
Percentage change = [(46 - 218) / 218] x 100
Subtract the new number by the original number
46 - 218 = -172
-172 ÷ 218 = -0.7889908256880734
-0.7889908256880734 x 100 = -78.9%