-57.99% is the change from 814 to 342
Calculation steps:
[( 342 - 814 ) ÷ 814] x 100 = -57.99%
Formula
Percentage change = [(342 - 814) / 814] x 100
Subtract the new number by the original number
342 - 814 = -472
-472 ÷ 814 = -0.5798525798525799
-0.5798525798525799 x 100 = -57.99%