SYMPTOM:
When using bubble markers on ESRI maps, and the format of the underlying metric is formatted as percent, the bubble sizes will not display proportional to the metric values when rendering in DHTML view modes in Strategy Web 9.4.1 HF3.
Note: This issue does not occur in Flash View Modes or Visual Insight.
View in Express Mode:

View in Flash Mode:

CAUSE:
This is a known issue with ESRI Maps in Strategy Web 9.4.1 HF3 - HF9 for metrics formatted as percent.
ACTION:
This issue has been addressed in Strategy Web 10.x. Upgrade to take advantage of the fix.
WORKAROUND:
Use Flash view mode or Visual Insight when displaying metric values based on percentages for ESRI bubble markers.
KB47129