-69.85% is the change from 816 to 246
Calculation steps:
[( 246 - 816 ) ÷ 816] x 100 = -69.85%
Formula
Percentage change = [(246 - 816) / 816] x 100
Subtract the new number by the original number
246 - 816 = -570
-570 ÷ 816 = -0.6985294117647058
-0.6985294117647058 x 100 = -69.85%