-45.71% is the change from 827 to 449
Calculation steps:
[( 449 - 827 ) ÷ 827] x 100 = -45.71%
Formula
Percentage change = [(449 - 827) / 827] x 100
Subtract the new number by the original number
449 - 827 = -378
-378 ÷ 827 = -0.4570737605804111
-0.4570737605804111 x 100 = -45.71%