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 86% of the votes cast and 73% of a town's 42,000 voters cast a vote, how many votes did the mayor receive?
| 21,462 | |
| 19,929 | |
| 17,170 | |
| 26,368 |