-99.17% is the change from 844 to 7
Calculation steps:
[( 7 - 844 ) ÷ 844] x 100 = -99.17%
Formula
Percentage change = [(7 - 844) / 844] x 100
Subtract the new number by the original number
7 - 844 = -837
-837 ÷ 844 = -0.9917061611374408
-0.9917061611374408 x 100 = -99.17%