On February 1, 2021, we completed an acquisition of a 75% ownership stake in Eco. The seller of Eco obtained the remaining equity interest in the newly formed company, Eco Enterprises. The seller’s redeemable non-controlling interest ("RNCI") was initially established at fair value.

The agreement between PGT Innovations, Inc. and the seller provides the Company with a call right for seller’s equity interest in the third year following the acquisition date. If the Company does not exercise its right to call by the third anniversary, the agreement provides the seller with a put right which can be exercised during the 15-day period following the third anniversary. Upon exercise of the put or call right, the purchase price is calculated based on a future agreed performance metric. The put option makes the non-controlling interest redeemable and, therefore, the redeemable non-controlling interest is classified as temporary equity outside of shareholders’ equity.

The Company calculates the estimated future redemption value of the non-controlling interest on a quarterly basis. The redeemable non-controlling interest is accreted to the future redemption value using the effective interest method up to the date on which the put-right becomes effective. Any accretion adjustment in the current reporting period of the redeemable non-controlling interest is offset against retained earnings and impacts earnings used in the calculation of earnings per share attributable to common shareholders in the reporting period. Based on the formula in the operating agreement governing this transaction, the future redemption value of the redeemable non-controlling interest was estimated to be $47.5 million, which we accreted to $39.7 million as of October 1, 2022.

The following table presents the changes in the Company’s redeemable non-controlling interest for the period presented:


	Nine Months Ended
	October 1,		October 2,
(in thousands)	2022		2021
Balance at beginning of period	$	36,863	$	—
RNCI in Eco at initially estimated fair value		—		28,464
Net income attributable to redeemable non-controlling interest		1,334		1,656
Change in value of redeemable non-controlling interest		1,514		4,528
Balance at end of period	$	39,711	$	34,648