Description:
A high-difficulty data interpretation set based on multiple products, combining visual data with layered discount and profit conditions.

Topics Involved:
Complex pie chart & bar graph interpretation, successive discounts, multi-step cost–selling price calculations, ratios, and advanced profit–loss analysis.

Solution (Summary):
Requires deriving hidden values, applying successive discounts, and comparing profit scenarios. Multiple steps make it challenging, with answers involving ratio comparisons, adjusted profit margins, and introduction of a new case.