-46.37% is the change from 399 to 214
Calculation steps:
[( 214 - 399 ) ÷ 399] x 100 = -46.37%
Formula
Percentage change = [(214 - 399) / 399] x 100
Subtract the new number by the original number
214 - 399 = -185
-185 ÷ 399 = -0.46365914786967416
-0.46365914786967416 x 100 = -46.37%