Answer:
127
Explanation:
You can write this as an equation! 800 - (423 + 250)
423
+ 250
-------------
673
That equation now simplifies down to 800 - 673.
800
- 673
-------------
127
Your answer should be 127. I hope this helped. (If you are looking for a percentage the answer is 15.88% has not been used!)
Hope this helps!