RMG Cost Optimisation in Bangladesh: Labour Cost Control Through Man-to-Machine Ratio and CMV Efficiency

Author: SRCO Business Insights | February 15, 2026

Bangladesh’s Ready-Made Garment (RMG) industry operates in an environment of tight contribution margins, increasing compliance costs, and rising minimum wages. While fabric and trims are largely buyer-driven costs, labour cost remains the most controllable expense for factory owners.

Among all labour-related levers, Man-to-Machine Ratio (MMR) and CMV (Cost per Minute Value) efficiency stand out as the most powerful and measurable tools to optimise costs and maximise profit without compromising compliance or quality.


Why Labour Cost Optimisation Is Critical for RMG Factories

Labour cost typically represents 25%–35% of total conversion cost in Bangladeshi garment factories. Many factories still rely on overtime, excess manpower, or informal buffers to meet shipment deadlines—resulting in hidden inefficiencies and inflated CMV.

Sustainable profitability requires a shift from manpower-driven production to productivity-driven production.


Key RMG Areas Where Labour Cost Can Be Optimised

1. Sewing Floor: Man-to-Machine Ratio (MMR) Optimisation

What Is Man-to-Machine Ratio?

Man-to-Machine Ratio indicates the number of operators deployed per machine on a production line. A high MMR usually signals overstaffing, poor line balancing, or inefficient work methods.

Typical MMR Benchmarks in RMG

Section Acceptable MMR
Sewing 1.0 – 1.2
Cutting 0.6 – 0.8
Finishing 0.8 – 1.0

⚠️ Many factories operate sewing lines at MMR 1.30–1.50, increasing labour cost per piece by 15%–25%.

Optimisation Actions

  • Conduct operation-wise time studies

  • Eliminate redundant helpers

  • Balance lines to remove bottlenecks

  • Align manpower with style complexity

📌 Lowering MMR without reducing output is the fastest way to reduce labour cost.


2. Industrial Engineering (IE): The Backbone of Cost Control

Why IE Is Often Underutilised

In many factories, IE teams focus on target setting, not cost optimisation. Without accurate SMV and capacity planning, CMV becomes unreliable.

High-Impact IE Interventions

  • Accurate SMV calculation by operation

  • Line balancing before production starts

  • Motion economy and layout redesign

  • Style feasibility analysis before order confirmation

🎯 Strong IE practices directly reduce manpower requirement and improve efficiency.


3. CMV (Cost per Minute Value): Measuring True Profitability

What Is CMV?

CMV measures labour cost per available production minute and is the most accurate indicator of conversion cost efficiency.

CMV=Total Labour CostTotal Available Minutes

Lower CMV = Higher margin.

Common CMV Issues in RMG

  • Excess indirect labour

  • High absenteeism

  • Overtime dependency

  • Frequent style changeovers

  • Poor capacity utilisation

📉 Factories often quote CM to buyers without knowing their actual CMV, leading to under-pricing.


4. Indirect Labour Rationalisation

Indirect labour (supervisors, helpers, quality checkers, mechanics) often accounts for 20%–30% of total labour cost.

Key Optimisation Areas

  • Supervisor span-of-control review

  • Helper-to-operator ratio assessment

  • Shift-wise manpower alignment

  • Productivity-linked incentive structures

🧮 Reducing indirect labour improves CMV without affecting production volume.


5. Man-to-Machine Shift: From Labour-Intensive to Semi-Automated

Strategic investment in semi-automatic machines reduces reliance on manual labour:

  • Button attach

  • Pocket setter

  • Auto trimming

  • Bar-tack & programmable machines

⚙️ Machine justification should be based on CMV reduction, not just output speed.


Combined Impact on RMG Profitability

Area Before After Optimisation
Sewing MMR 1.40 1.10
Line Efficiency 45% 60%+
CMV (BDT/min) 0.65 0.48
Labour Cost per Piece High ↓ 18–25%

📊 These savings directly increase net contribution margin.


Strategic Importance for RMG Factories in Bangladesh

  • Buyers are continuously reducing CM

  • Labour cost is structurally rising

  • Competing countries are more productive

  • Compliance costs are non-negotiable

🔑 Only factories that optimise labour scientifically will remain competitive.


Role of Professional Advisory Support

A structured labour cost optimisation program includes:

  • Manpower rationalisation studies

  • CMV benchmarking & buyer alignment

  • IE capability strengthening

  • Profitability analysis by style & buyer

Labour cost optimisation is not cost cutting—it is operational discipline.


Conclusion

RMG profitability in Bangladesh will no longer be driven by volume alone. Man-to-Machine Ratio optimisation and CMV efficiency provide factories with a practical, measurable, and sustainable path to maximise profit while maintaining quality and compliance.

Factories that act now will gain a structural advantage in an increasingly competitive global apparel market.

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