improve readability

kaldi_data_generator/main.py

@@ -771,10 +771,10 @@ def main():
             logger.info(
                 f"Number of skipped pages: {data_generator.skipped_pages_count}"
             )
-            skipped_ratio = data_generator.skipped_vertical_lines_count / (
-                data_generator.skipped_vertical_lines_count
-                + data_generator.accepted_lines_count
-            ) * 100
+            _skipped_vertical_count = data_generator.skipped_vertical_lines_count
+            _total_count = _skipped_vertical_count + data_generator.accepted_lines_count
+            skipped_ratio = _skipped_vertical_count / _total_count * 100
+
             logger.info(
                 f"Skipped {data_generator.skipped_vertical_lines_count} vertical lines ({round(skipped_ratio, 2)}%)"
             )