The basic logic says: "What percent of 25 is 18?"
18 = (x/100)25
x = 1800/25
x = 72%
18 is 72% of 25
This is a decrease of 28% from the original number
0r a change of -28%
Follow the same logic with a change from 36 to 45
45 = (x/100)36
When you solve for x it will be greater than 100.
Subtract the original 100% from it to get the
POSITIVE change in percentage.
