The phrase 'contribution about' is correct and usable in written English.
You can use it to refer to a contribution (an idea, opinion, or action) that relates to a particular topic. For example: "I wrote an article making a contribution about the importance of environmental conservation".
The state's share of the stadium contribution — about $348 million — will come from expanded gambling options.
In the scheme of the broader electrical grid, even getting to three megawatts is a small contribution, about enough to power 1,200 homes and businesses in Maine, the company estimates.
However, the authors add that this was true during the early part of the 16-year period, but more recently non-European migrants have also made a positive fiscal contribution – about £5bn more in taxes than the amount they receive in benefits.
The figure for all countries was $813 billion, making China's contribution about 4percentt of the total.
VS Naipaul makes a cameo appearance with a hilarious contribution about his attempts to overcome the city bureaucracy to bring in a couple of bottles of alcohol.
The Harry Potter films were given an award for outstanding British contribution – about time, some might say, given their astonishing global success.
Chris Mason brings together Radio 4 listeners' contributions about housing and population.
Based on the personal concentrations, chromium dominated with a contribution of about 70%, followed by about a 20% contribution from nickel in both cities.
The event raised about $20,000 for Mrs. Dole's campaign, but she has pledged to donate Mr. Lay's contribution -- about $5,000 -- to the Enron employees' fund.
Today its contribution is about a third.
The UK's annual national contribution is about £9bn.
