Charcoal, 20 bytes
﹪%.2fX¹·⁰⁶⁴⁴⁹⁴⁴⁵⁻N³¹
Try it online! Link is to verbose version of code. Numeric constant stolen from @JonathanAllen@JonathanAllan. Explanation:
N Input as a number
⁻ ³¹ Subtract literal 31
X¹·⁰⁶⁴⁴⁹⁴⁴⁵ Raise literal 1.06449445 to that power
﹪%.2f Format using literal format string `%.2f`
Implicitly print