american tower corporation and subsidiaries notes to consolidated financial statements 2014 ( continued ) the following table illustrates the effect on net loss and net loss per share if the company had applied the fair value recognition provisions of sfas no . 123 to stock-based compensation . the estimated fair value of each option is calculated using the black-scholes option-pricing model ( in thousands , except per share amounts ) : .

2002: net loss as reported: -1141879
less : total stock-based employee compensation expense determined under fair value basedmethod for all awards net of related tax effect: -38126
pro-forma net loss: -1180005
basic and diluted net loss per share 2014as reported: -5.84
basic and diluted net loss per share 2014pro-forma: -6.04
2001: net loss as reported: -450094
less : total stock-based employee compensation expense determined under fair value basedmethod for all awards net of related tax effect: -50540
pro-forma net loss: -500634
basic and diluted net loss per share 2014as reported: -2.35
basic and diluted net loss per share 2014pro-forma: -2.61
2000: net loss as reported: -194628
less : total stock-based employee compensation expense determined under fair value basedmethod for all awards net of related tax effect: -51186
pro-forma net loss: -245814
basic and diluted net loss per share 2014as reported: -1.15
basic and diluted net loss per share 2014pro-forma: -1.46

fair value of financial instruments 2014as of december 31 , 2002 , the carrying amounts of the company 2019s 5.0% ( 5.0 % ) convertible notes , the 2.25% ( 2.25 % ) convertible notes , the 6.25% ( 6.25 % ) convertible notes and the senior notes were approximately $ 450.0 million , $ 210.9 million , $ 212.7 million and $ 1.0 billion , respectively , and the fair values of such notes were $ 291.4 million , $ 187.2 million , $ 144.4 million and $ 780.0 million , respectively . as of december 31 , 2001 , the carrying amount of the company 2019s 5.0% ( 5.0 % ) convertible notes , the 2.25% ( 2.25 % ) convertible notes , the 6.25% ( 6.25 % ) convertible notes and the senior notes were approximately $ 450.0 million , $ 204.1 million , $ 212.8 million and $ 1.0 billion , respectively , and the fair values of such notes were $ 268.3 million , $ 173.1 million , $ 158.2 million and $ 805.0 million , respectively . fair values were determined based on quoted market prices . the carrying values of all other financial instruments reasonably approximate the related fair values as of december 31 , 2002 and 2001 . retirement plan 2014the company has a 401 ( k ) plan covering substantially all employees who meet certain age and employment requirements . under the plan , the company matches 35% ( 35 % ) of participants 2019 contributions up to a maximum 5% ( 5 % ) of a participant 2019s compensation . the company contributed approximately $ 979000 , $ 1540000 and $ 1593000 to the plan for the years ended december 31 , 2002 , 2001 and 2000 , respectively . recent accounting pronouncements 2014in june 2001 , the fasb issued sfas no . 143 , 201caccounting for asset retirement obligations . 201d this statement establishes accounting standards for the recognition and measurement of liabilities associated with the retirement of tangible long-lived assets and the related asset retirement costs . the requirements of sfas no . 143 are effective for the company as of january 1 , 2003 . the company will adopt this statement in the first quarter of 2003 and does not expect the impact of adopting this statement to have a material impact on its consolidated financial position or results of operations . in august 2001 , the fasb issued sfas no . 144 , 201caccounting for the impairment or disposal of long-lived assets . 201d sfas no . 144 supersedes sfas no . 121 , 201caccounting for the impairment of long-lived assets and for long-lived assets to be disposed of , 201d but retains many of its fundamental provisions . sfas no . 144 also clarifies certain measurement and classification issues from sfas no . 121 . in addition , sfas no . 144 supersedes the accounting and reporting provisions for the disposal of a business segment as found in apb no . 30 , 201creporting the results of operations 2014reporting the effects of disposal of a segment of a business and extraordinary , unusual and infrequently occurring events and transactions 201d . however , sfas no . 144 retains the requirement in apb no . 30 to separately report discontinued operations , and broadens the scope of such requirement to include more types of disposal transactions . the scope of sfas no . 144 excludes goodwill and other intangible assets that are not to be amortized , as the accounting for such items is prescribed by sfas no . 142 . the company implemented sfas no . 144 on january 1 , 2002 . accordingly , all relevant impairment assessments and decisions concerning discontinued operations have been made under this standard in 2002. .

Questions:
what was the value of contributions in 2002?
what was the value of contributions in 2001?
what was the difference?
what, again, was the value in 2001?
what is the percent change?

Answers:
979000
1540000
-561000
1540000
-36.4%