-75.88% is the change from 991 to 239
Calculation steps:
[( 239 - 991 ) ÷ 991] x 100 = -75.88%
Formula
Percentage change = [(239 - 991) / 991] x 100
Subtract the new number by the original number
239 - 991 = -752
-752 ÷ 991 = -0.7588294651866802
-0.7588294651866802 x 100 = -75.88%