-6.1% is the change from 852 to 800
Calculation steps:
[( 800 - 852 ) ÷ 852] x 100 = -6.1%
Formula
Percentage change = [(800 - 852) / 852] x 100
Subtract the new number by the original number
800 - 852 = -52
-52 ÷ 852 = -0.06103286384976526
-0.06103286384976526 x 100 = -6.1%