-55.12% is the change from 889 to 399
Calculation steps:
[( 399 - 889 ) ÷ 889] x 100 = -55.12%
Formula
Percentage change = [(399 - 889) / 889] x 100
Subtract the new number by the original number
399 - 889 = -490
-490 ÷ 889 = -0.5511811023622047
-0.5511811023622047 x 100 = -55.12%