Value ladder of products

We have to give products made from base items a value, depending on production steps = complexity, energy need. 

Formula

Production steps = 1 * nr of steps (≥2)
Energy units = 1 * number of units needed

Formula: value = production steps * energy units. As starter: 1 value = 1 Minegeld 

Examples

Tofu: 11 production steps (2x water bottle = 6), 5 energy units (glass bottle = 2). Formula = (2*3 + 5) * 5 = 55

Citrus juice: 5 production steps, 2 energy units. Formula = 5*2 = 10

Formul