-88.9% is the change from 991 to 110
Calculation steps:
[( 110 - 991 ) ÷ 991] x 100 = -88.9%
Formula
Percentage change = [(110 - 991) / 991] x 100
Subtract the new number by the original number
110 - 991 = -881
-881 ÷ 991 = -0.8890010090817356
-0.8890010090817356 x 100 = -88.9%