-44.86% is the change from 399 to 220
Calculation steps:
[( 220 - 399 ) ÷ 399] x 100 = -44.86%
Formula
Percentage change = [(220 - 399) / 399] x 100
Subtract the new number by the original number
220 - 399 = -179
-179 ÷ 399 = -0.44862155388471175
-0.44862155388471175 x 100 = -44.86%