First, subtract 18 from 21.96. 21.96 - 18 = 3.96 That is the amount it was increased by. Now, to find the percent increase, divide 3.96 by 18. 3.96 ÷ 18 = 0.21444 In percents, that is equal to 21.444%. The large fruit smoothie is 21.444% larger. Hope this helps!
