-46.19% is the change from 840 to 452
Calculation steps:
[( 452 - 840 ) ÷ 840] x 100 = -46.19%
Formula
Percentage change = [(452 - 840) / 840] x 100
Subtract the new number by the original number
452 - 840 = -388
-388 ÷ 840 = -0.46190476190476193
-0.46190476190476193 x 100 = -46.19%