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 81% of the votes cast and 65% of a town's 40,000 voters cast a vote, how many votes did the mayor receive?
| 21,580 | |
| 21,060 | |
| 21,840 | |
| 22,620 |