The Polish zloty fell to its weakest level against the euro since February 1.
The Polish zloty jumped on the governor's remarks about the likely pause in easing.
Adverse exchange rates also affected profits made in euros or the Polish zloty when converted into sterling, Kingfisher said.
The Polish zloty rose slightly on Wednesday morning in Warsaw, to 3.320 to the euro, from 3.323 to the euro at the close on Tuesday.
Increasingly-hawkish policymaker Andrzej Wojtyna was also quoted as saying Thursday that a single rate hike was necessary to halt the weakness of the Polish zloty.
They allow their currencies to weaken steadily against a basket of euros and dollars the Polish zloty within wide bands, the Hungarian forint within narrow ones.
Poles working in London were unlucky in the currency game after the Polish zloty gained about 8.5% against the British pound between March and April 2009.
White-jacketed waiters serve well-executed Polish classics such as wild boar pate and pork knuckles with cabbage to the table, and the three-course express lunch is a snip at 20 Polish zloty.
The Polish zloty has been tumbling on the foreign-exchange markets, losing 5% against the dollar in a day and raising fears that it could suffer the same speculative attacks as the Czech koruna suffered earlier in the year.
The zloty has weakened gently, bringing joy to Polish exporters.
ECONOMIST: Poland's central-bank governor has been a huge success
According to Nordea, the euro may weaken further against the zloty in the first half of this year, with the Polish currency trading below four zlotys to the euro by the end of June.
Even when the zloty hardened, demand from Germany kept exports booming (keen prices and flexible workers make Polish subcontractors a vital part of the Teutonic trade machine).
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