Answer:
27%
Explanation:
100% (total population) - 73% (people who will approve) = 27% (no opinion or disapprove)
-> We can take our whole, 100%, and subtract the portion that will approve to find the percentage (%) of people that will not approve or that will have no opinion
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather