-50.54% is the change from 653 to 323
Calculation steps:
[( 323 - 653 ) ÷ 653] x 100 = -50.54%
Formula
Percentage change = [(323 - 653) / 653] x 100
Subtract the new number by the original number
323 - 653 = -330
-330 ÷ 653 = -0.5053598774885145
-0.5053598774885145 x 100 = -50.54%