English to Chinese Science Mathematics & Statistics

What does fitted and solved here mean? Any links to a pertinent statistical (?) page?

Thanks.

Context:

% Difference Between Fitted and Solved Maximum Values

Standard:
"A" Value from hBNP curve
"B" Value from hBNP curve
"C" Value from hBNP curve
"D" Value from hBNP curve
Solved Max. Value:
Y = ((A-D)/(1+(800/C)ùB))+D
% Difference = (D-Solved Max.)/D ′ 100
(≤ 9.0%)

Sample:
"A" Value from hBNP curve
"B" Value from hBNP curve
"C" Value from hBNP curve
"D" Value from hBNP curve
Solved Max. Value:
Y = ((A-D)/(1+(800/C)ùB))+D
% Difference = (D-Solved Max.)/D ′ 100
(≤ 9.0%)