-40.98% is the change from 854 to 504
Calculation steps:
[( 504 - 854 ) ÷ 854] x 100 = -40.98%
Formula
Percentage change = [(504 - 854) / 854] x 100
Subtract the new number by the original number
504 - 854 = -350
-350 ÷ 854 = -0.4098360655737705
-0.4098360655737705 x 100 = -40.98%