-53.46% is the change from 853 to 397
Calculation steps:
[( 397 - 853 ) ÷ 853] x 100 = -53.46%
Formula
Percentage change = [(397 - 853) / 853] x 100
Subtract the new number by the original number
397 - 853 = -456
-456 ÷ 853 = -0.5345838218053928
-0.5345838218053928 x 100 = -53.46%