-91.74% is the change from 847 to 70
Calculation steps:
[( 70 - 847 ) ÷ 847] x 100 = -91.74%
Formula
Percentage change = [(70 - 847) / 847] x 100
Subtract the new number by the original number
70 - 847 = -777
-777 ÷ 847 = -0.9173553719008265
-0.9173553719008265 x 100 = -91.74%