-91.44% is the change from 923 to 79
Calculation steps:
[( 79 - 923 ) ÷ 923] x 100 = -91.44%
Formula
Percentage change = [(79 - 923) / 923] x 100
Subtract the new number by the original number
79 - 923 = -844
-844 ÷ 923 = -0.914409534127844
-0.914409534127844 x 100 = -91.44%