-40.56% is the change from 853 to 507
Calculation steps:
[( 507 - 853 ) ÷ 853] x 100 = -40.56%
Formula
Percentage change = [(507 - 853) / 853] x 100
Subtract the new number by the original number
507 - 853 = -346
-346 ÷ 853 = -0.4056271981242673
-0.4056271981242673 x 100 = -40.56%