-56.46% is the change from 813 to 354
Calculation steps:
[( 354 - 813 ) ÷ 813] x 100 = -56.46%
Formula
Percentage change = [(354 - 813) / 813] x 100
Subtract the new number by the original number
354 - 813 = -459
-459 ÷ 813 = -0.5645756457564576
-0.5645756457564576 x 100 = -56.46%