-90.5% is the change from 979 to 93
Calculation steps:
[( 93 - 979 ) ÷ 979] x 100 = -90.5%
Formula
Percentage change = [(93 - 979) / 979] x 100
Subtract the new number by the original number
93 - 979 = -886
-886 ÷ 979 = -0.9050051072522982
-0.9050051072522982 x 100 = -90.5%