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 87% of the votes cast and 87% of a town's 21,000 voters cast a vote, how many votes did the mayor receive?
| 12,241 | |
| 11,327 | |
| 14,251 | |
| 15,895 |