Compared to Pie Chart questions, Bar Chart questions are normally slightly harder by involving year-over-year or month-over-month percentages changes, although some simpler questions may require you to calculate two numbers within one single period.
Let us take another example: (again, a question developed from a real test question, just like all the other questions in our courses and tests)
- In Q1, we know total=1000 and Email Feedback=320, so Phone Call=1000-320=680
- In Q2, Email Feedback=320*105%=336, Phone Call=680*130%=884, Q2 Total=336+884=1220