-48.03% is the change from 814 to 423
Calculation steps:
[( 423 - 814 ) ÷ 814] x 100 = -48.03%
Formula
Percentage change = [(423 - 814) / 814] x 100
Subtract the new number by the original number
423 - 814 = -391
-391 ÷ 814 = -0.48034398034398035
-0.48034398034398035 x 100 = -48.03%