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 68% of a town's 37,000 voters cast a vote, how many votes did the mayor receive?
| 20,380 | |
| 18,870 | |
| 21,386 | |
| 20,631 |