-45.11% is the change from 818 to 449
Calculation steps:
[( 449 - 818 ) ÷ 818] x 100 = -45.11%
Formula
Percentage change = [(449 - 818) / 818] x 100
Subtract the new number by the original number
449 - 818 = -369
-369 ÷ 818 = -0.4511002444987775
-0.4511002444987775 x 100 = -45.11%