The given table shows the production of units of different products in different months.  Product   March   June   September   December  Z 15 18 12 19 Y 18 13 17 8 X 14 17 19 16 W 12 14 11 15 Y's total production is what percentage of Z's total production?

88.5% 89.5% 87.5% 114.28%

87.5%

Total production of Y = 18 + 13 + 17 + 8 = 56 Total production of Z = 15 + 18 + 12 + 19 = 64 Required percentage = \(\frac{56}{64}\) × 100 = 87.5%