-22.39% is the change from 545 to 423
Calculation steps:
[( 423 - 545 ) ÷ 545] x 100 = -22.39%
Formula
Percentage change = [(423 - 545) / 545] x 100
Subtract the new number by the original number
423 - 545 = -122
-122 ÷ 545 = -0.22385321100917432
-0.22385321100917432 x 100 = -22.39%