a When a multiplier reflects an increase, we add the percentage change in decimal form to 1. Conversely, for a decrease, we subtract the percentage change from 1.
increase:decrease:1+percentage increase1−percentage decrease
By writing 25% in decimal form and adding this number to 1 we can find the multiplier. Since percent means hundredths
, 25% can be written as 10025=0.25. Now we can find the multiplier.