In general, do the following factors likely indicate an increase or decrease in total cost?

Answer $1$Decrease in costIncrease in cost$1.$ A company purchases goods in bulk by combining purchases across its various segments.Answer $2$Decrease in costIncrease in cost$2.$ A consolidation of suppliers in the water treatment industry resulted in a reduction in the number of suppliers.Answer $3$Decrease in costIncrease in cost$3.$ Due to a widespread product recall, the availability of new cell phones dropped.Answer $4$Decrease in costIncrease in cost$4.$ The original budget is based on the production of $50,000$ lamps while actual production for the period was $40,000$ lamps.Answer $5$Decrease in costIncrease in cost$5.$ There was a positive percentage change in the price of similar products and services from