-41.24% is the change from 485 to 285
Calculation steps:
[( 285 - 485 ) ÷ 485] x 100 = -41.24%
Formula
Percentage change = [(285 - 485) / 485] x 100
Subtract the new number by the original number
285 - 485 = -200
-200 ÷ 485 = -0.41237113402061853
-0.41237113402061853 x 100 = -41.24%