-70.13% is the change from 827 to 247
Calculation steps:
[( 247 - 827 ) ÷ 827] x 100 = -70.13%
Formula
Percentage change = [(247 - 827) / 827] x 100
Subtract the new number by the original number
247 - 827 = -580
-580 ÷ 827 = -0.7013301088270859
-0.7013301088270859 x 100 = -70.13%