-51.04% is the change from 917 to 449
Calculation steps:
[( 449 - 917 ) ÷ 917] x 100 = -51.04%
Formula
Percentage change = [(449 - 917) / 917] x 100
Subtract the new number by the original number
449 - 917 = -468
-468 ÷ 917 = -0.5103598691384951
-0.5103598691384951 x 100 = -51.04%