westrock company notes to consolidated financial statements 2014 ( continued ) note 20 . stockholders 2019 equity capitalization our capital stock consists solely of common stock . holders of our common stock are entitled to one vote per share . our amended and restated certificate of incorporation also authorizes preferred stock , of which no shares have been issued . the terms and provisions of such shares will be determined by our board of directors upon any issuance of such shares in accordance with our certificate of incorporation . stock repurchase plan in july 2015 , our board of directors authorized a repurchase program of up to 40.0 million shares of our common stock , representing approximately 15% ( 15 % ) of our outstanding common stock as of july 1 , 2015 . the shares of our common stock may be repurchased over an indefinite period of time at the discretion of management . in fiscal 2019 , we repurchased approximately 2.1 million shares of our common stock for an aggregate cost of $ 88.6 million . in fiscal 2018 , we repurchased approximately 3.4 million shares of our common stock for an aggregate cost of $ 195.1 million . in fiscal 2017 , we repurchased approximately 1.8 million shares of our common stock for an aggregate cost of $ 93.0 million . as of september 30 , 2019 , we had remaining authorization under the repurchase program authorized in july 2015 to purchase approximately 19.1 million shares of our common stock . note 21 . share-based compensation share-based compensation plans at our annual meeting of stockholders held on february 2 , 2016 , our stockholders approved the westrock company 2016 incentive stock plan . the 2016 incentive stock plan was amended and restated on february 2 , 2018 ( the 201camended and restated 2016 incentive stock plan 201d ) . the amended and restated 2016 incentive stock plan allows for the granting of options , restricted stock , sars and restricted stock units to certain key employees and directors . the table below shows the approximate number of shares : available for issuance , available for future grant , to be issued if restricted awards granted with a performance condition recorded at target achieve the maximum award , and if new grants pursuant to the plan are expected to be issued , each as adjusted as necessary for corporate actions ( in millions ) . shares available issuance shares available for future shares to be issued if performance is achieved at maximum expect to awards amended and restated 2016 incentive stock plan ( 1 ) 11.7 5.1 2.3 yes 2004 incentive stock plan ( 1 ) ( 2 ) 15.8 3.1 0.0 no 2005 performance incentive plan ( 1 ) ( 2 ) 12.8 9.0 0.0 no rocktenn ( sscc ) equity inventive plan ( 1 ) ( 3 ) 7.9 5.9 0.0 no ( 1 ) as part of the separation , equity-based incentive awards were generally adjusted to maintain the intrinsic value of awards immediately prior to the separation . the number of unvested restricted stock awards and unexercised stock options and sars at the time of the separation were increased by an exchange factor of approximately 1.12 . in addition , the exercise price of unexercised stock options and sars at the time of the separation was converted to decrease the exercise price by an exchange factor of approximately 1.12 . ( 2 ) in connection with the combination , westrock assumed all rocktenn and mwv equity incentive plans . we issued awards to certain key employees and our directors pursuant to our rocktenn 2004 incentive stock plan , as amended , and our mwv 2005 performance incentive plan , as amended . the awards were converted into westrock awards using the conversion factor as described in the business combination agreement . ( 3 ) in connection with the smurfit-stone acquisition , we assumed the smurfit-stone equity incentive plan , which was renamed the rock-tenn company ( sscc ) equity incentive plan . the awards were converted into shares of rocktenn common stock , options and restricted stock units , as applicable , using the conversion factor as described in the merger agreement. .
what was the weighted average total of the aggregate cost of the per share repurchased from 2017 to 2019
westrock company notes to consolidated financial statements 2014 ( continued ) note 20 . stockholders 2019 equity capitalization our capital stock consists solely of common stock . holders of our common stock are entitled to one vote per share . our amended and restated certificate of incorporation also authorizes preferred stock , of which no shares have been issued . the terms and provisions of such shares will be determined by our board of directors upon any issuance of such shares in accordance with our certificate of incorporation . stock repurchase plan in july 2015 , our board of directors authorized a repurchase program of up to 40.0 million shares of our common stock , representing approximately 15% ( 15 % ) of our outstanding common stock as of july 1 , 2015 . the shares of our common stock may be repurchased over an indefinite period of time at the discretion of management . in fiscal 2019 , we repurchased approximately 2.1 million shares of our common stock for an aggregate cost of $ 88.6 million . in fiscal 2018 , we repurchased approximately 3.4 million shares of our common stock for an aggregate cost of $ 195.1 million . in fiscal 2017 , we repurchased approximately 1.8 million shares of our common stock for an aggregate cost of $ 93.0 million . as of september 30 , 2019 , we had remaining authorization under the repurchase program authorized in july 2015 to purchase approximately 19.1 million shares of our common stock . note 21 . share-based compensation share-based compensation plans at our annual meeting of stockholders held on february 2 , 2016 , our stockholders approved the westrock company 2016 incentive stock plan . the 2016 incentive stock plan was amended and restated on february 2 , 2018 ( the 201camended and restated 2016 incentive stock plan 201d ) . the amended and restated 2016 incentive stock plan allows for the granting of options , restricted stock , sars and restricted stock units to certain key employees and directors . the table below shows the approximate number of shares : available for issuance , available for future grant , to be issued if restricted awards granted with a performance condition recorded at target achieve the maximum award , and if new grants pursuant to the plan are expected to be issued , each as adjusted as necessary for corporate actions ( in millions ) . shares available issuance shares available for future shares to be issued if performance is achieved at maximum expect to awards amended and restated 2016 incentive stock plan ( 1 ) 11.7 5.1 2.3 yes 2004 incentive stock plan ( 1 ) ( 2 ) 15.8 3.1 0.0 no 2005 performance incentive plan ( 1 ) ( 2 ) 12.8 9.0 0.0 no rocktenn ( sscc ) equity inventive plan ( 1 ) ( 3 ) 7.9 5.9 0.0 no ( 1 ) as part of the separation , equity-based incentive awards were generally adjusted to maintain the intrinsic value of awards immediately prior to the separation . the number of unvested restricted stock awards and unexercised stock options and sars at the time of the separation were increased by an exchange factor of approximately 1.12 . in addition , the exercise price of unexercised stock options and sars at the time of the separation was converted to decrease the exercise price by an exchange factor of approximately 1.12 . ( 2 ) in connection with the combination , westrock assumed all rocktenn and mwv equity incentive plans . we issued awards to certain key employees and our directors pursuant to our rocktenn 2004 incentive stock plan , as amended , and our mwv 2005 performance incentive plan , as amended . the awards were converted into westrock awards using the conversion factor as described in the business combination agreement . ( 3 ) in connection with the smurfit-stone acquisition , we assumed the smurfit-stone equity incentive plan , which was renamed the rock-tenn company ( sscc ) equity incentive plan . the awards were converted into shares of rocktenn common stock , options and restricted stock units , as applicable , using the conversion factor as described in the merger agreement. .