What was the percentage change in the amount of tax paid in 2019 from 2018?
{"": {"2019": "\u00a3m", "2018": "\u00a3m"}, "Net cash from operating activities as reported under IFRS": {"2019": 227.4, "2018": 212.6}, "Acquisition and disposal costs": {"2019": 2.5, "2018": 0.2}, "Net capital expenditure excluding acquired intangibles from acquisitions": {"2019": -59.0, "2018": -31.5}, "Tax paid": {"2019": 78.4, "2018": 61.6}, "Repayments of principal under lease liabilities": {"2019": -11.2, "2018": "\u2013"}, "Adjusted cash from operations": {"2019": 238.1, "2018": 242.9}}
tax_paid_2019 = df["Tax paid"]["2019"]
tax_paid_2018 = df["Tax paid"]["2018"]
answer = ( tax_paid_2019 - tax_paid_2018 ) / tax_paid_2018 * 100.0