-47.54% is the change from 814 to 427
Calculation steps:
[( 427 - 814 ) ÷ 814] x 100 = -47.54%
Formula
Percentage change = [(427 - 814) / 814] x 100
Subtract the new number by the original number
427 - 814 = -387
-387 ÷ 814 = -0.47542997542997545
-0.47542997542997545 x 100 = -47.54%