-91.4% is the change from 814 to 70
Calculation steps:
[( 70 - 814 ) ÷ 814] x 100 = -91.4%
Formula
Percentage change = [(70 - 814) / 814] x 100
Subtract the new number by the original number
70 - 814 = -744
-744 ÷ 814 = -0.914004914004914
-0.914004914004914 x 100 = -91.4%