-47.41% is the change from 812 to 427
Calculation steps:
[( 427 - 812 ) ÷ 812] x 100 = -47.41%
Formula
Percentage change = [(427 - 812) / 812] x 100
Subtract the new number by the original number
427 - 812 = -385
-385 ÷ 812 = -0.47413793103448276
-0.47413793103448276 x 100 = -47.41%