-24.06% is the change from 399 to 303
Calculation steps:
[( 303 - 399 ) ÷ 399] x 100 = -24.06%
Formula
Percentage change = [(303 - 399) / 399] x 100
Subtract the new number by the original number
303 - 399 = -96
-96 ÷ 399 = -0.24060150375939848
-0.24060150375939848 x 100 = -24.06%