-91.76% is the change from 849 to 70
Calculation steps:
[( 70 - 849 ) ÷ 849] x 100 = -91.76%
Formula
Percentage change = [(70 - 849) / 849] x 100
Subtract the new number by the original number
70 - 849 = -779
-779 ÷ 849 = -0.917550058892815
-0.917550058892815 x 100 = -91.76%