N.Y. Comp. Codes R. & Regs. tit. 20, § 4-6.1
(b) When it appears that the business allocation percentage or alternative business allocation percentage does not properly reflect the activity, nature of business, income or capital of the taxpayer in New York State, the commissioner, in his or her discretion, may adjust the business allocation percentage or alternative business allocation percentage by:
Tax Law, § 210(8)