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 81% of a town's 33,000 voters cast a vote, how many votes did the mayor receive?
| 19,246 | |
| 21,117 | |
| 23,255 | |
| 15,503 |