pre_text: The following is a summary of amounts reclassified from AOCI for the years ended June 30, 2019 and 2018: (a) Amounts in parentheses indicate debits to income/loss. (b) These AOCI components are included in the computation of net periodic benefit cost (see Note 11 for additional details).
table: Amount Reclassified from AOCI
table: Years Ended June 30,
table: ($ in millions) (a) Location of gain (loss) 2019 2018
table: Details about AOCI Components
table: Cash flow hedging items
table: Commodity contracts Cost of sales $5.1 $1.8
table: Foreign exchange contracts Net sales 1.0 (1.0)
table: Forward interest rate swaps Interest expense 0.4 0.4
table: Total before tax 6.5 1.2
table: Tax expense (1.6) (0.4)
table: Net of tax $4.9 $0.8
table: Amortization of pension and other postretirement benefit plan items
table: Net actuarial loss (b) $(12.0) $(16.4)
table: Prior service cost (b) 3.1 3.1
table: Total before tax (8.9) (13.3)
table: Tax benefit 2.1 4.4
table: Net of tax $(6.8) $(8.9)
question: Analyse this data from a financial earnings document. What was the percentage change in Forward interest rate swaps in 2019 from 2018?