Let's compare currency pair PLN/MXN by taking into account the value of PLN against the value of MXN so right now we can say you could get a PLN with 4.32640 MXN.
Going into terminology, in this case PLN is the transaction currency or base currency having on the other side the counter currency or quote currency which in this case is MXN.
Analyzing the evolution of the price in the last hours we can observe that the maximum price that this pair has reached has been 4.33410 while the minimum price has been 4.31380 And thanks to this observation, we conclude a variation of 0.02320 or, in other words, with a percentage variation of 0.54000%.