MacBook Pro (15-inch, Mid 2010) battery

Have new MacBook Pro (15-inch, Mid 2010) 3 month old and battery life today is - 87% after 2 calibrations every month.

Wait for it will be <80% and ask my seller to replace it or need to be replaced now ?

Thanks.

Additional battery info:

Model Information:

Serial Number: W0024PWF3BX0A

Manufacturer: SMP

Device name: bq20z451

Pack Lot Code: 0000

PCB Lot Code: 0000

Firmware Version: 0201

Hardware Revision: 000a

Cell Revision: 0157

Charge Information:

Charge remaining (mAh): 5582

Fully charged: No

Charging: Yes

Full charge capacity (mAh): 6083

Health Information:

Cycle count: 231

Condition: Normal

Battery Installed: Yes

Amperage (mA): 1227

Voltage (mV): 12529