What is the increase/ (decrease) in Audit-Related Fees from 2019 to 2018?
{"Audit Fees (1)": {"2019": 2723, "2018": 2529}, "Audit-Related Fees (2)": {"2019": 33, "2018": 59}, "Tax Fees (3)": {"2019": 23, "2018": 32}, "Total": {"2019": 2779, "2018": 2620}, "": {"2019": "", "2018": ""}}
audit_related_fees_2019 = df["Audit-Related Fees (2)"]["2019"]
audit_related_fees_2018 = df["Audit-Related Fees (2)"]["2018"]
answer = audit_related_fees_2019 - audit_related_fees_2018