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 88% of the votes cast and 90% of a town's 28,000 voters cast a vote, how many votes did the mayor receive?
| 20,412 | |
| 18,396 | |
| 19,908 | |
| 22,176 |