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 85% of the votes cast and 30% of a town's 10,000 voters cast a vote, how many votes did the mayor receive?
| 1,920 | |
| 2,130 | |
| 2,550 | |
| 2,220 |