-52.46% is the change from 835 to 397
Calculation steps:
[( 397 - 835 ) ÷ 835] x 100 = -52.46%
Formula
Percentage change = [(397 - 835) / 835] x 100
Subtract the new number by the original number
397 - 835 = -438
-438 ÷ 835 = -0.5245508982035928
-0.5245508982035928 x 100 = -52.46%