Final Temperature Calculation from Percent Increases and Decrease

A researcher conducted an experiment where the initial temperature of a solution was measured at 25°C. After a series of treatments, the temperature increased by 120% and then stabilized for a period. Following this, the solution was cooled down by 45% of the newly obtained temperature.

If the final temperature of the solution is denoted as $T_f$, what is the value of $T_f$?