Stata code to remove outliers.

In an empirical paper I want to replicate: they state that

1. "We truncate the distribution of annual growth in total book assets at 100%"

2. We truncate the distribution of ROA at 100% and 100%.

3. We also drop observations that imply annual differences in ROA between two consecutive years that are larger than 100 percentage points in absolute value.

How can I apply three restrictions in STATA? Thank you.