-56.6% is the change from 818 to 355
Calculation steps:
[( 355 - 818 ) ÷ 818] x 100 = -56.6%
Formula
Percentage change = [(355 - 818) / 818] x 100
Subtract the new number by the original number
355 - 818 = -463
-463 ÷ 818 = -0.5660146699266504
-0.5660146699266504 x 100 = -56.6%