-8.38% is the change from 990 to 907
Calculation steps:
[( 907 - 990 ) ÷ 990] x 100 = -8.38%
Formula
Percentage change = [(907 - 990) / 990] x 100
Subtract the new number by the original number
907 - 990 = -83
-83 ÷ 990 = -0.08383838383838384
-0.08383838383838384 x 100 = -8.38%