-7.37% is the change from 990 to 917
Calculation steps:
[( 917 - 990 ) ÷ 990] x 100 = -7.37%
Formula
Percentage change = [(917 - 990) / 990] x 100
Subtract the new number by the original number
917 - 990 = -73
-73 ÷ 990 = -0.07373737373737374
-0.07373737373737374 x 100 = -7.37%