According to that site, £ 1 in 1330 would be £ 1056.57 in 2018. So the 1330 penny would be worth about £ 4.40375 today. That thatcher would make about £ 13.21 a day, and the tunic would cost £ 158.54, or about $205 in a currency we're more familiar with. For that to be "two weeks' wages" implies a yearly wage of about £ 3800, or $4900. (Of course as the linked site points out, that sort of income calculation doesn't account for non-monetary sources of consumption, which were non-negligible back then.)
According to that site, £ 1 in 1330 would be £ 1056.57 in 2018. So the 1330 penny would be worth about £ 4.40375 today. That thatcher would make about £ 13.21 a day, and the tunic would cost £ 158.54, or about $205 in a currency we're more familiar with. For that to be "two weeks' wages" implies a yearly wage of about £ 3800, or $4900. (Of course as the linked site points out, that sort of income calculation doesn't account for non-monetary sources of consumption, which were non-negligible back then.)