-52.13% is the change from 823 to 394
Calculation steps:
[( 394 - 823 ) ÷ 823] x 100 = -52.13%
Formula
Percentage change = [(394 - 823) / 823] x 100
Subtract the new number by the original number
394 - 823 = -429
-429 ÷ 823 = -0.5212636695018226
-0.5212636695018226 x 100 = -52.13%