President Mahama dares NPP to disclose cost of redenomination President John Mahama has challenged the opposition NPP to tell Ghanaians how much was spent on the redenomination of the national currency, the cedi. He said after so many years the NPP has not been able to make this known, yet it is the first to raise unfounded criticism when it comes to issues on the economy. Addressing party faithful at the start of the second phase of the Greater Accra campaign tour, President Mahama asked the electorates to remain focus. GBC