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 78% of the votes cast and 51% of a town's 48,000 voters cast a vote, how many votes did the mayor receive?
| 17,870 | |
| 19,094 | |
| 19,339 | |
| 21,787 |