-76.86% is the change from 389 to 90
Calculation steps:
[( 90 - 389 ) ÷ 389] x 100 = -76.86%
Formula
Percentage change = [(90 - 389) / 389] x 100
Subtract the new number by the original number
90 - 389 = -299
-299 ÷ 389 = -0.7686375321336761
-0.7686375321336761 x 100 = -76.86%