-57.21% is the change from 811 to 347
Calculation steps:
[( 347 - 811 ) ÷ 811] x 100 = -57.21%
Formula
Percentage change = [(347 - 811) / 811] x 100
Subtract the new number by the original number
347 - 811 = -464
-464 ÷ 811 = -0.5721331689272503
-0.5721331689272503 x 100 = -57.21%