mw mamonal plant . approximately $ 77 million of the purchase price was allocated to goodwill and is being amortized over 32 years . the termocandelaria power plant has been included in discontinued operations in the accompanying consolidated financial statements . the table below presents supplemental unaudited pro forma operating results as if all of the acquisitions had occurred at the beginning of the periods shown ( in millions , except per share amounts ) . no pro forma operating results are provided for 2001 , because the impact would not have been material . the pro forma amounts include certain adjustments , primarily for depreciation and amortization based on the allocated purchase price and additional interest expense : year ended december 31 , 2000 .

Table:
 | year ended december 31 2000
revenue | $ 8137
income before extraordinary items | 833
net income | 822
basic earnings per share | $ 1.67
diluted earnings per share | $ 1.61
the pro forma results are based upon assumptions and estimates that the company believes are reasonable .
the pro forma results do not purport to be indicative of the results that actually would have been obtained had the acquisitions occurred at the beginning of the periods shown , nor are they intended to be a projection of future results .
3 .
discontinued operations effective january 1 , 2001 , the company adopted sfas no .
144 .
this statement addresses financial accounting and reporting for the impairment or disposal of long-lived assets .
sfas no .
144 requires a component of an entity that either has been disposed of or is classified as held for sale to be reported as discontinued operations if certain conditions are met .
during the year , the company decided to exit certain of its businesses .
these businesses included power direct , geoutilities , termocandelaria , ib valley and several telecommunications businesses in brazil and the u.s .
the businesses were either disposed of or abandoned during the year or were classified as held for sale at december 31 , 2001 .
for those businesses disposed of or abandoned , the company determined that significant adverse changes in legal factors and/or the business climate , such as unfavorable market conditions and low tariffs , negatively affected the value of these assets .
the company has certain businesses that are held for sale , including termocandelaria .
the company has approved and committed to a plan to sell these assets , they are available for immediate sale , and a plan has been established to locate a buyer at a reasonable fair market value price .
the company believes it will sell these assets within one year and it is unlikely that significant changes will be made to the plan to sell .
at december 31 , 2001 , the assets and liabilities associated with the discontinued operations are segregated on the consolidated balance sheets .
a majority of the long-lived assets related to discontinued operations are for the termocandelaria competitive supply business located in colombia .
the revenues associated with the discontinued operations were $ 287 million , $ 74 million and $ 7 million for the years ended december 31 , 2001 , 2000 and 1999 , respectively .
the pretax losses associated with the discontinued operations were $ 58 million , $ 31 million and $ 4 million for each of the years ended december 31 , 2001 , 2000 and 1999 , respectively .
the loss on disposal and impairment write-downs for those businesses held for sale , net of tax associated with the discontinued operations , was $ 145 million for the year ended december 31 , 2001. .

Question: disco losses improved by how much in 2001?
Answer: 27000000
Calculation: subtract(58, 31), multiply(#0, const_1000000)