Question 3 What effect would each of the following have on the short-run average and marginal costs of a C 8: T courier service centre in Shah Alam, Selangor: a) The price for packaging materials rises by 20%; b) The insurance premium for the warehouse increases; c) Management decided to expand the warehouse size in catering to increasing parcel volumes during the pandemic lockdown. d) The logistic cost for overseas shipments declined by 10%