Problem-Solving and Data Analysis | Percent Change, Multipliers & Reverse Percent

Lesson Review Available

Review the foundation notes with TTA Pro Mr.O before solving. If this skill drill is part of an anchor lesson, the notes stay available during practice.

Objective: Name the quantity that is the 100% in any percent sentence and act on it: convert between percent, decimal, fraction and multiplier; take a percent of a whole and recover the whole from a part; collapse a discount, tax, tip or markup into a single 1+r or 1-r factor; compute and reverse a percent change against the correct base; compose successive and nested percents; separate percentage points from percent change; and pin a percent parameter with a structural condition under test timing.