-79.36% is the change from 218 to 45
Calculation steps:
[( 45 - 218 ) ÷ 218] x 100 = -79.36%
Formula
Percentage change = [(45 - 218) / 218] x 100
Subtract the new number by the original number
45 - 218 = -173
-173 ÷ 218 = -0.7935779816513762
-0.7935779816513762 x 100 = -79.36%