-36.58% is the change from 667 to 423
Calculation steps:
[( 423 - 667 ) ÷ 667] x 100 = -36.58%
Formula
Percentage change = [(423 - 667) / 667] x 100
Subtract the new number by the original number
423 - 667 = -244
-244 ÷ 667 = -0.3658170914542729
-0.3658170914542729 x 100 = -36.58%