-40.64% is the change from 849 to 504
Calculation steps:
[( 504 - 849 ) ÷ 849] x 100 = -40.64%
Formula
Percentage change = [(504 - 849) / 849] x 100
Subtract the new number by the original number
504 - 849 = -345
-345 ÷ 849 = -0.40636042402826855
-0.40636042402826855 x 100 = -40.64%