Why was currency revalued because foreign exchange reserves were very low (cont)? meaning in plain English?

Question

at the end of 1987 the Dinar was
revalued but not devaluated because foreign exchange
reserves were very low and the equivalent of 4 times
Jordan's GDP of Joranian capital was held abroad had
caused this decision. Can you explain this and if the
JD went down- by how much and why?
Also, if you happen to remember some other reasons of
why the gov't wants to keep wages low or why their
still low

Answer 1

If wages stay low, the prices remain low which increases exports and foreign trade.

Answer 2

the goverment is thinking now of binding the JD with the euro right now