-30.47% is the change from 814 to 566
Calculation steps:
[( 566 - 814 ) ÷ 814] x 100 = -30.47%
Formula
Percentage change = [(566 - 814) / 814] x 100
Subtract the new number by the original number
566 - 814 = -248
-248 ÷ 814 = -0.3046683046683047
-0.3046683046683047 x 100 = -30.47%