A home décor business was struggling with poor gross profit margins due to high advertising costs, with the PPC budget consuming 75% of their total marketing spend. This left no room for reinvestment and was compounded by a poor account structure. Our strategic PPC optimisation focused on cost efficiency and campaign effectiveness. By implementing a new campaign strategy, reducing bid percentages, scaling effectively, and introducing high-converting campaigns, we successfully reduced the Cost of Sale (COS) from 18% to 12% year-over-year, freeing up significant budget for reinvestment.