-53.93% is the change from 623 to 287
Calculation steps:
[( 287 - 623 ) ÷ 623] x 100 = -53.93%
Formula
Percentage change = [(287 - 623) / 623] x 100
Subtract the new number by the original number
287 - 623 = -336
-336 ÷ 623 = -0.5393258426966292
-0.5393258426966292 x 100 = -53.93%