What was the percentage change in equity settled share plans in 2019 from 2018?
{"": {"2019": "\u00a3m", "2018": "\u00a3m"}, "Adjusted operating profit": {"2019": 282.7, "2018": 264.9}, "Depreciation and amortisation (excluding IFRS16 depreciation)": {"2019": 34.3, "2018": 32.9}, "Cash payments to pension schemes in excess of charge to P&L": {"2019": -5.2, "2018": -4.6}, "Equity settled share plans": {"2019": 6.2, "2018": 5.7}, "Working capital changes": {"2019": -21.4, "2018": -22.5}, "Cash generation": {"2019": 296.6, "2018": 276.4}}
equity_settled_share_plans_2019 = df["Equity settled share plans"]["2019"]
equity_settled_share_plans_2018 = df["Equity settled share plans"]["2018"]
answer = ( equity_settled_share_plans_2019 - equity_settled_share_plans_2018 ) / equity_settled_share_plans_2018 * 100.0