A consumer report revealed the following information about three tubes of toothpaste. Bright is $60 \%$ more expensive than Fresh and has $25\%$ less volume than Glow. Glow is $25\%$ less expensive than Bright and has $33\frac{1}{3} \%$ more volume than Fresh. Fresh costs $\$1.00$ per unit of volume. What is the number of cents per unit of volume of Glow?
Make a table to organize the information about the cost and the volume of the three tubes of toothpaste.  Let the number of units of volume in one tube of Fresh be $u$.  Then the cost of one tube of Fresh is $\$u$.  Since Bright is more expensive than Fresh by $60\%$, one tube of Bright costs $\$\,\frac{8}{5}u$.  Also, since Glow has $33\frac{1}{3}\%$ more volume than Fresh, the volume of a tube of Glow is $\frac{4}{3}u$ units.   \[
\begin{array}{c|cc}
& \text{volume} & \text{cost} \\ \hline
\text{Bright} & & \$\,\frac{8}{5}u \\
\text{Fresh} & u & \$\,u\\
\text{Glow} & \frac{4}{3}u &
\end{array}
\]Finally, multiply the volume of Glow by $\frac{3}{4}$ to find the volume of Bright, and multiply the cost of Bright by $\frac{3}{4}$ to find the cost of Glow. \[
\begin{array}{c|cc}
& \text{volume} & \text{cost} \\ \hline
\text{Bright} & u & \$\,\frac{8}{5}u \\
\text{Fresh} & u & \$\,u\\
\text{Glow} & \frac{4}{3}u & \$\,\frac{6}{5} u
\end{array}
\]Dividing the cost of a tube of Glow by its volume, we find a cost-per-unit-volume of $\$\frac{6}{5}u\div \frac{4}{3}u=\$\frac{9}{10}=\boxed{90}$ cents.