-92.71% is the change from 864 to 63
Calculation steps:
[( 63 - 864 ) ÷ 864] x 100 = -92.71%
Formula
Percentage change = [(63 - 864) / 864] x 100
Subtract the new number by the original number
63 - 864 = -801
-801 ÷ 864 = -0.9270833333333334
-0.9270833333333334 x 100 = -92.71%