-31.94% is the change from 623 to 424
Calculation steps:
[( 424 - 623 ) ÷ 623] x 100 = -31.94%
Formula
Percentage change = [(424 - 623) / 623] x 100
Subtract the new number by the original number
424 - 623 = -199
-199 ÷ 623 = -0.31942215088282505
-0.31942215088282505 x 100 = -31.94%