-40.49% is the change from 852 to 507
Calculation steps:
[( 507 - 852 ) ÷ 852] x 100 = -40.49%
Formula
Percentage change = [(507 - 852) / 852] x 100
Subtract the new number by the original number
507 - 852 = -345
-345 ÷ 852 = -0.40492957746478875
-0.40492957746478875 x 100 = -40.49%