Answer:
243 people did not vote
Step-by-step explanation:
First you would calculate the number of people who DID vote:
27% + 43% = 70% (this is how many people voted)
you would then subtract to find the percent of people who DIDNT vote:
100% - 70% = 30%
Finally you would convert the % into an actual number.
0.30 (or 30%) x 810 members = 243 members
So, 243 members didn't vote.
Hope this helps!