-92.59% is the change from 864 to 64
Calculation steps:
[( 64 - 864 ) ÷ 864] x 100 = -92.59%
Formula
Percentage change = [(64 - 864) / 864] x 100
Subtract the new number by the original number
64 - 864 = -800
-800 ÷ 864 = -0.9259259259259259
-0.9259259259259259 x 100 = -92.59%