-56.1% is the change from 811 to 356
Calculation steps:
[( 356 - 811 ) ÷ 811] x 100 = -56.1%
Formula
Percentage change = [(356 - 811) / 811] x 100
Subtract the new number by the original number
356 - 811 = -455
-455 ÷ 811 = -0.561035758323058
-0.561035758323058 x 100 = -56.1%