What's the percent from $18 to $45

Is would be a 150% increase. Since your going from 18 to 45, your increase of percentage would be 150%, and the difference is 27.

When finding a percent, you must do a strategy called FOO (final minus original divided by original)

The original is the first number and the final is the second

After FOO you multiply the answer by 100 to make it a precent

The equation looks like this

45-18:18*100

This equals 150%