-69.68% is the change from 818 to 248
Calculation steps:
[( 248 - 818 ) ÷ 818] x 100 = -69.68%
Formula
Percentage change = [(248 - 818) / 818] x 100
Subtract the new number by the original number
248 - 818 = -570
-570 ÷ 818 = -0.6968215158924206
-0.6968215158924206 x 100 = -69.68%