-48.57% is the change from 628 to 323
Calculation steps:
[( 323 - 628 ) ÷ 628] x 100 = -48.57%
Formula
Percentage change = [(323 - 628) / 628] x 100
Subtract the new number by the original number
323 - 628 = -305
-305 ÷ 628 = -0.4856687898089172
-0.4856687898089172 x 100 = -48.57%