-52.78% is the change from 864 to 408
Calculation steps:
[( 408 - 864 ) ÷ 864] x 100 = -52.78%
Formula
Percentage change = [(408 - 864) / 864] x 100
Subtract the new number by the original number
408 - 864 = -456
-456 ÷ 864 = -0.5277777777777778
-0.5277777777777778 x 100 = -52.78%