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 90% of the votes cast and 30% of a town's 50,000 voters cast a vote, how many votes did the mayor receive?
| 10,650 | |
| 13,200 | |
| 10,500 | |
| 13,500 |