-36.73% is the change from 991 to 627
Calculation steps:
[( 627 - 991 ) ÷ 991] x 100 = -36.73%
Formula
Percentage change = [(627 - 991) / 991] x 100
Subtract the new number by the original number
627 - 991 = -364
-364 ÷ 991 = -0.36730575176589303
-0.36730575176589303 x 100 = -36.73%