(FOR THIS PROBLEM ONLY) To convert a decimal into a fraction, you divide a decimal by 1,000. You then divide both the top and bottom numbers separately by 125. That gives you the fraction in lowest terms, 3/8 (numerator 3, denominator 8).
To convert a decimal into a percent, you multiply your decimal by 100. With this problem, you move the decimal 2 spaces to the right.This gives you 37.5%.
Hope this helps.