-51.09% is the change from 918 to 449
Calculation steps:
[( 449 - 918 ) ÷ 918] x 100 = -51.09%
Formula
Percentage change = [(449 - 918) / 918] x 100
Subtract the new number by the original number
449 - 918 = -469
-469 ÷ 918 = -0.5108932461873639
-0.5108932461873639 x 100 = -51.09%