-9.46% is the change from 423 to 383
Calculation steps:
[( 383 - 423 ) ÷ 423] x 100 = -9.46%
Formula
Percentage change = [(383 - 423) / 423] x 100
Subtract the new number by the original number
383 - 423 = -40
-40 ÷ 423 = -0.09456264775413711
-0.09456264775413711 x 100 = -9.46%