The Reuters Tankan is a monthly survey of leading Japanese companies, and it was formally known as Telerate Tankan until it was renamed after the acquisition of Quick Money line Telerate Corp. by Thomson Reuters Group. It covers a panel of 200 manufacturers and 200 non-manufacturers. The monthly figures are designed to provide early indications of the BOJs quarterly tankan. The indexes are derived by subtracting the percentage of respondents who say business conditions are poor from the percentage of those who say they are good.