-71.3% is the change from 864 to 248
Calculation steps:
[( 248 - 864 ) ÷ 864] x 100 = -71.3%
Formula
Percentage change = [(248 - 864) / 864] x 100
Subtract the new number by the original number
248 - 864 = -616
-616 ÷ 864 = -0.7129629629629629
-0.7129629629629629 x 100 = -71.3%