-23.61% is the change from 991 to 757
Calculation steps:
[( 757 - 991 ) ÷ 991] x 100 = -23.61%
Formula
Percentage change = [(757 - 991) / 991] x 100
Subtract the new number by the original number
757 - 991 = -234
-234 ÷ 991 = -0.23612512613521694
-0.23612512613521694 x 100 = -23.61%