-47.99% is the change from 621 to 323
Calculation steps:
[( 323 - 621 ) ÷ 621] x 100 = -47.99%
Formula
Percentage change = [(323 - 621) / 621] x 100
Subtract the new number by the original number
323 - 621 = -298
-298 ÷ 621 = -0.47987117552334946
-0.47987117552334946 x 100 = -47.99%