To answer this question, I need to find the total amount of money they earned and then figure out how much of that is in coins that cannot be converted into bills. I can add up the amounts they earned by aligning the decimal points and adding column by column, starting from the rightmost one. I get $\$25.67 + \$17.21 + \$39.17 + \$26.32 = \$108.37$. To convert coins into bills, I need to round down the amount to the nearest dollar. That means I ignore the cents and focus on the dollars. The nearest dollar to $\$108.37$ is $\$108$, so they can convert $\$108$ into bills and have $\$0.37$ left in change. The change is in cents, so I multiply $\$0.37$ by $100$ to get $37$ cents. Therefore, the answer is $37$ cents. 
Alice, Bailey, Cindy, and Daniel walked around their neighborhoods selling pens. Alice earned $\$25.67$, Bailey earned $\$17.21$, Cindy earned $\$39.17$, and Daniel earned $\$26.32$. After the sale, they pooled their money together and went to the bank to convert the coins into dollars. How many cents in change did they have left after they converted as many of the coins into bills as they could?