What is the percent increase from 60 to 120?

To find the percent increase between two numbers, first you find the difference (120-60=60). Then you divide the difference by the original number (60/60). Then multiply this by 100. So this is a 100% increase.

First, subtract the numbers:

120 - 60 = 60

Divide this to the original:

60 / 60 = 1

Multiply by 100:

1 * 100 = 100%

So the percent increase is 100%.

The answer would be: b