-44.1% is the change from 390 to 218
Calculation steps:
[( 218 - 390 ) ÷ 390] x 100 = -44.1%
Formula
Percentage change = [(218 - 390) / 390] x 100
Subtract the new number by the original number
218 - 390 = -172
-172 ÷ 390 = -0.441025641025641
-0.441025641025641 x 100 = -44.1%