Well! that depends on the size and shape of the pool.
Here are some starting costs for an average size 32m2 pool
Average cost of supply for an 8m x 4m (32m2) + del & install
• for a Daisy 525 Titanium Solar Pool Cover $485
• for a Daisy ThermoTech 3mm Foam Pool Cover $1020
• for a Daisy WinterKleen Pool Cover $1140
• Average cost of supply for a popular Daisy Roller $485