I can't replicate the "Round percentages" issue.
(In ) refs #1562 - round percentages using sprintf() since float implementation is platform-dependent (e.g., single vs double precision, accuracy, etc)
(In ) refs #1562 - update expected integration test results
(In ) refs #1562 - fix cropped graphs displaying percentages
Sparklines are broken too.
(In ) fixes #1562 - cropped values and pretty printing fixed