-71.11% is the change from 855 to 247
Calculation steps:
[( 247 - 855 ) ÷ 855] x 100 = -71.11%
Formula
Percentage change = [(247 - 855) / 855] x 100
Subtract the new number by the original number
247 - 855 = -608
-608 ÷ 855 = -0.7111111111111111
-0.7111111111111111 x 100 = -71.11%