-52.33% is the change from 816 to 389
Calculation steps:
[( 389 - 816 ) ÷ 816] x 100 = -52.33%
Formula
Percentage change = [(389 - 816) / 816] x 100
Subtract the new number by the original number
389 - 816 = -427
-427 ÷ 816 = -0.5232843137254902
-0.5232843137254902 x 100 = -52.33%