-53.17% is the change from 852 to 399
Calculation steps:
[( 399 - 852 ) ÷ 852] x 100 = -53.17%
Formula
Percentage change = [(399 - 852) / 852] x 100
Subtract the new number by the original number
399 - 852 = -453
-453 ÷ 852 = -0.5316901408450704
-0.5316901408450704 x 100 = -53.17%