MATH 110 Lecture 30: Percent Change
Document Summary
To find the percent change(increase or decrease), use the formula given in example . Example 1 school earnings have increased to per month. Last year, harold earned a month at his after school job. First, circle what you"re looking for percent increase. Percent change (percent increase, percentage rise, % difference, percent decrease, and so forth) is always found by using the equation. The percent increase in harold"s after school salary is 20%. There are many types of word problems involving arithmetic, algebra, geometry, and combinations of them with various twists. It is most important to have a systematic technique for solving word problems. Here is such a technique: first, identify what is being asked. Whatever it is, find it and then circle it. This helps ensure that you are solving for what is being asked: next, underline and pull out information you are given in the problem.
