-45.92% is the change from 845 to 457
Calculation steps:
[( 457 - 845 ) ÷ 845] x 100 = -45.92%
Formula
Percentage change = [(457 - 845) / 845] x 100
Subtract the new number by the original number
457 - 845 = -388
-388 ÷ 845 = -0.4591715976331361
-0.4591715976331361 x 100 = -45.92%