-50.84% is the change from 653 to 321
Calculation steps:
[( 321 - 653 ) ÷ 653] x 100 = -50.84%
Formula
Percentage change = [(321 - 653) / 653] x 100
Subtract the new number by the original number
321 - 653 = -332
-332 ÷ 653 = -0.5084226646248086
-0.5084226646248086 x 100 = -50.84%