whats the best way to prep for di?

I've completed the afterboards capsule for tabular data and I've tried to attempt a DI set on the weekly DILR. It took a lot of time plus I couldn't comprehend what the question asked and thus made error in the calculation part. Eg i didn't understand that profit was to be calculated like = revenue x category contribution x profit margin. the set mentioned that profit is to be calculated as a percentage of revenue. but i misinterpreted, took a long time on calculation as well.

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Comments (1)

You have already identified where you went wrong. Now, for next time, make sure to look out for such details.

Also, why don't you use the on screen calculator, it is there for your convenience?

Also, go through the solutions more than once to get a better understanding.

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