What is the percentage constitution of the commitments for operating leases for year ending 2020 among the total commitments for operating leases?
{"Fiscal Period: -- Year ending 2020": {"Operating Leases": 38790, "Other Contractual Commitments": 108978, "Total": 147768}, "Fiscal Period: -- Years ending 2021 - 2024": {"Operating Leases": 148021, "Other Contractual Commitments": 219342, "Total": 367363}, "Fiscal Period: -- Thereafter": {"Operating Leases": 144037, "Other Contractual Commitments": "\u2014", "Total": 144037}, "Fiscal Period: -- Total commitments": {"Operating Leases": 330848, "Other Contractual Commitments": 328320, "Total": 659168}}
commitments_2020 = df["Fiscal Period: -- Year ending 2020"]["Operating Leases"]
total_commitments = df["Fiscal Period: -- Total commitments"]["Operating Leases"]
answer = commitments_2020 / total_commitments * 100.0