Progress bar or progress circle?

Both progress bars and circles can show either determinate or indeterminate progress. The available space should help determine whether a progress bar or circle is best. Progress bars are preferred in vertically narrow areas such as tables or cards. Use a progress circle for full-page loading or very small areas. Use a progress bar in a loader dialog.

Labels

Use the built-in style to show a label associated with the operation. This style always includes a left-aligned label and a right-aligned percentage value above the track. The label should be in sentence case. Add an ellipsis ("...") at the end to indicate that the action is in progress — for example, "Loading data..." or "Updating settings..."