-52.73% is the change from 823 to 389
Calculation steps:
[( 389 - 823 ) ÷ 823] x 100 = -52.73%
Formula
Percentage change = [(389 - 823) / 823] x 100
Subtract the new number by the original number
389 - 823 = -434
-434 ÷ 823 = -0.5273390036452005
-0.5273390036452005 x 100 = -52.73%