_____ measures the change in TP due to a one unit change in the quantity of labour used: May 1, 2021 by admin Question: _____ measures the change in TP due to a one unit change in the quantity of labour used: A. MPC B. MPS C. MPI D. MPPL Answer» d. MPPL Note: The above multiple-choice question is for all general and Competitive Exams in India.