-57.62% is the change from 814 to 345
Calculation steps:
[( 345 - 814 ) ÷ 814] x 100 = -57.62%
Formula
Percentage change = [(345 - 814) / 814] x 100
Subtract the new number by the original number
345 - 814 = -469
-469 ÷ 814 = -0.5761670761670762
-0.5761670761670762 x 100 = -57.62%