(Answered) Most choices involve q, which involves comparing the benefits and costs of choosing a little more…

➤ How do you calculate marginal benefit and marginal cost?
Calculate marginal benefit by taking the change in total benefit divided by the change in quantity. Calculate marginal cost similarly: change in total cost divided by change in quantity. For discrete units use differences (ΔB/ΔQ, ΔC/ΔQ). For continuous choices use derivatives: MB = dB/dQ and MC = dC/dQ to evaluate small incremental changes.