-47.42% is the change from 814 to 428
Calculation steps:
[( 428 - 814 ) ÷ 814] x 100 = -47.42%
Formula
Percentage change = [(428 - 814) / 814] x 100
Subtract the new number by the original number
428 - 814 = -386
-386 ÷ 814 = -0.4742014742014742
-0.4742014742014742 x 100 = -47.42%