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 82% of a town's 40,000 voters cast a vote, how many votes did the mayor receive?
| 28,536 | |
| 29,192 | |
| 27,880 | |
| 21,320 |