-57.74% is the change from 814 to 344
Calculation steps:
[( 344 - 814 ) ÷ 814] x 100 = -57.74%
Formula
Percentage change = [(344 - 814) / 814] x 100
Subtract the new number by the original number
344 - 814 = -470
-470 ÷ 814 = -0.5773955773955773
-0.5773955773955773 x 100 = -57.74%