With the part and rate known, the base can be calculated using the following formula:
Example 9
If the sales tax rate is 4%, find the amount of sales when the sales tax is RM 16.
Solution:
3.7 Finding Base
Example 10
At a local university, 10,580 male students are enrolled which account for 46% of the total enrolment. What is the total number of students?
Solution:
Example 11
A car dealer sold 125 cars last month to people entering his showroom. How many customers visited the dealership if the 125 who purchased cars represent 2 ½% of those who visited the showroom?
