We are asked to determine the change in temperature. To do that we will use the following formula:
[tex]\Delta T=T_f-T_0[/tex]Where:
[tex]\begin{gathered} \Delta T=\text{ change in temperature} \\ T_f,T_0=\text{ final and initial temperature} \end{gathered}[/tex]Now, we substitute the values:
[tex]\Delta T=152-230[/tex]Solving the operations:
[tex]\Delta T=-78[/tex]Therefore, the change in temperature is -78°