The change in the value of a stock is represented by the rational number - 5.90 describe in words what this means

We are given : A stock is represented by - 5.90.

The given number is a negative number.

Note: When a stock is given by a negative number, it represents the decrease in stock and when a stock is given by a positive number, it represents the increase in stock.

As we are given number is a negative number, we can just say that

" The stock value is being decrease by 5.90".