-7.03% is the change from 455 to 423
Calculation steps:
[( 423 - 455 ) ÷ 455] x 100 = -7.03%
Formula
Percentage change = [(423 - 455) / 455] x 100
Subtract the new number by the original number
423 - 455 = -32
-32 ÷ 455 = -0.07032967032967033
-0.07032967032967033 x 100 = -7.03%