In Zugic v Vesuvius Australia Pty Ltd [2020] NSWSC 106 Ward CJ in Eq observed at [310] that 'A not wholly unresolved point is whether the concept of the “minimum equity” has been discarded in the context of promissory estoppel (as well as in the context of proprietary estoppel).

Should the 'minimum equity' approach determine the appropriate remedy in a case of promissory estoppel? In your answer, compare this with the relevant approach to remedies in proprietary estoppel.