-28.37% is the change from 423 to 303
Calculation steps:
[( 303 - 423 ) ÷ 423] x 100 = -28.37%
Formula
Percentage change = [(303 - 423) / 423] x 100
Subtract the new number by the original number
303 - 423 = -120
-120 ÷ 423 = -0.28368794326241137
-0.28368794326241137 x 100 = -28.37%