Percentages are ratios of an amount compared to 100. The percent change of an old to new value is equal to 100% x \({ new - old \over old }\).
If a mayor is elected with 81% of the votes cast and 31% of a town's 42,000 voters cast a vote, how many votes did the mayor receive?
| 9,895 | |
| 7,031 | |
| 8,984 | |
| 10,546 |