Feature before/after

[charbonnier]

hi all
when in a preparation i have choice movies and menu only, and i leave the option 33% reduction for extra

[00.49.41] Phase I, PREPARATION started.
- DVD-RB v1.28.2
- AVISYNTH 2.6.0.0
- CCE 2.70.2.12 encoder selected.
- "Steal Space from Extras" mode (33%) is enabled.
- "Movie and Menus Only" mode is enabled.
- Source: DVD9 RUNNING MAN 9 DI 9 BY AQUI
- VTSM_01: 139.062 sectors.
-- Scanning and writing .D2V & .AVS files
-- Processed 10.572 frames.
-- Building .AVS and .ECL files
- VTS_01: 3.344.996 sectors.
-- Scanning and writing .D2V & .AVS files
-- Processed 144.915 frames.
-- Building .AVS and .ECL files
- VTS_02: 477.400 sectors.
-- Scanning and writing .D2V & .AVS files
-- Processed 44.281 frames.
-- Building .AVS and .ECL files
- VTS_03: 25.936 sectors.
-- Scanning and writing .D2V & .AVS files
-- Processed 2.203 frames.
-- Building .AVS and .ECL files
- Reduction Level for DVD-5: 59,4%
- Overall Bitrate : 4.707/3.766Kbs
- Space for Video : 3.872.480KB
- Redistributing using Base_Q: 24
- Movie improvement from extra reduction = 6,0%
- Blanking all EXTRA Segments
-- Feature before/after: 4.548 / 5.155 Kbs
[00.56.50] Phase I, PREPARATION completed in 7 minutes.

i have some doubts

1) Overall Bitrate : 4.707/3.766Kbs

4707 for what ? and 3766 for what ?

2)Reduction Level for DVD-5: 59,4%
Movie improvement from extra reduction = 6,0%
Blanking all EXTRA Segments
Feature before/after: 4.548 / 5.155 Kbs

now if i want to know the final percentage, how i can ?
usually i suppose the feature BEFORE (4548) is the addition of 59.4%+6.0% , 65.4%
and if i blank all extras i'll do the equation
4548:65,4=x:100
x=original bitrate=6954 kbs
and then
5155:x=6954:100
x=final compression percentage=74%

i'll do right ??? :helpful: