-70.37% is the change from 847 to 251
Calculation steps:
[( 251 - 847 ) ÷ 847] x 100 = -70.37%
Formula
Percentage change = [(251 - 847) / 847] x 100
Subtract the new number by the original number
251 - 847 = -596
-596 ÷ 847 = -0.7036599763872491
-0.7036599763872491 x 100 = -70.37%