The learning curve

Hello,
From Wikipedia.
Mathematically the experience curve is described by a power law function sometimes referred to as Henderson's Law:

• [4]

where

• is the cost of the first unit of production
• is the cost of the nth unit of production
• is the cumulative volume of production
• is the elasticity of cost with regard to output[

If that is the law involved you enter it as follows

60000*500[ ^ ] [(-)] 0.415 [=] result should be 4550.705

Here
[ ^ ] is the power key, between x-square and log
[(-)] is the change sign (or negation) key in the leftmost column, just above [RCL]

Hope it helps.