Given the Following Risk Solver Platform (RSP) Sensitivity Output What $\text {Changing Calls}$

Given the following Risk Solver Platform (RSP) sensitivity output what range of values can the objective function coefficient for variable X1 assume without changing the optimal solution?
$\text {Changing Calls}$
$\begin{array}{llrrrrr}&&\text { Final} &\text {Reduced }&\text {Objective }&\text {Allowable}&\text { Allowable }\\\text { Cell } & \text { Name } & \text { Value } & \text { Cost } & \text { Coefficient } & \text { Increase } & \text { Decrease } \\\hline \$ \mathrm{~B} \$ 4 & \text { Number to make: } \mathrm{X} 1 & 9.49 & 0 & 5 & 1.54 & 1 \\\$ \mathrm{C} \$ 4 & \text { Number to make: } \mathrm{X} 2 & 1.74 & 0 & 6 & 1.5 & 1.47\end{array}$

$\text {Constraints}$
$\begin{array}{llrrrrr}&&\text { Final } &\text {Shadow} &\text { Constraint } &\text {Allowable} &\text { Allowable }\\\text { Cell } & \text { Name } & \text { Value } & \text { Price } & \text { R.H. Side } & \text { Increase } & \text { Decrease } \\\hline \$ \mathrm{D} \$ 8 & \text { Used } & 42 & 0 & 48 & 1 \mathrm{E}+30 & 6 \\\$ \mathrm{D} \$ 9 & \text { Used } & 132 & 0.24 & 132 & 12 & 12 \\\$ \mathrm{D} \$ 10 & \text { Used } & 24 & 124 & 24 & 133 & 2\end{array}$