Find each percent increase round to the nearest percent from $5 to $8

There are at least a few ways to do it, one of them being:

$8 - $5 = $3, so we may want to find out how much percent of 5 is 3.

3 = x% of 5
3 = x/100 * 5
3 = x/20 * 1
3 = x/20                    / * 20 (both sides)
x = 60 [percent]

So now we know that 3 is 60% of 5. It also means that the increase from $5 to $8 was by 60%.

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