SOLUTION: I need to figure out a way to solve this type of questions, please help!! When multiplying two numbers, you increase (or decrease) one number by (let's say) 20%, and increase (o

Question 587758: I need to figure out a way to solve this type of questions, please help!!
When multiplying two numbers, you increase (or decrease) one number by (let's say) 20%, and increase (or decrease) the other by (let's say) 30%, by what % will the final product change?
Thanks!
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Say one number is
increased by 20% is
Say the other number is
increased by 30% is
-----------------
Now to multiply these:

You can rewrite this as

--------------
I just picked any 2 numbers, so you would have
times whatever numbers you pick
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