Guaranteeing worthiness per base upgrade screw cost:
Guaranteeing worthiness per base upgrade screw cost:
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|-|General rules=
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When upgrading any equipment, Devmats and Screw are consumed, and eventually one or several equipment and consumables.
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*Since obtaining Devmats is not an issue, their cost is simply ignored.
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*Since failing an upgrade does not consume any consumables, they are ignored.
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*For equipment consumed :
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**If they are craftable or relatively easy to obtain, their cost is negligible in front of any screw cost.
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**If the equipment consumed is a very rare one, then guaranteeing the upgrade should be evident.
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**If the equipment consumed is itself made via Akashi's upgrades, '''then its total screw cost must be added to the base screw costs used in later examples.