-44.1% is the change from 991 to 554
Calculation steps:
[( 554 - 991 ) ÷ 991] x 100 = -44.1%
Formula
Percentage change = [(554 - 991) / 991] x 100
Subtract the new number by the original number
554 - 991 = -437
-437 ÷ 991 = -0.4409687184661958
-0.4409687184661958 x 100 = -44.1%