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Hard Multi-Step Percent Problems (SAT)

When percent problems get hard, especially on standardized tests like the SAT, it's often because it's a two-step process. For example, a retail item is marked down once, then marked down again. Or, perhaps something gets bought and sold a couple times. Regardless of the exact question they're asking, the burn is always the same, and this video will show you how to always use the right denominator!