-38.69% is the change from 990 to 607
Calculation steps:
[( 607 - 990 ) ÷ 990] x 100 = -38.69%
Formula
Percentage change = [(607 - 990) / 990] x 100
Subtract the new number by the original number
607 - 990 = -383
-383 ÷ 990 = -0.38686868686868686
-0.38686868686868686 x 100 = -38.69%