How to Calculate the Piece Rate of Sewing Operations Scientifically?

Most of the factories used to set up prices for each operation after analyzing the operations in a garment. To decide the rate of each operation, they usually used following things-

Experience of how may pieces can be made in a day for a particular operation
Comparing the rate of other factories for similar operations in that place (market price rate)
Negotiating with worker.

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By fixing operator rate sometimes the final cost of garment can be higher and for that company can be loser for a particular style and sometime rate can be lower (based on style, criticality etc.) for operator and for that worker can be demotivated

“So for making a fair rate, a scientific method can be applied for fixing each operation piece rate.”

Now I am sharing the procedure of calculating the scientific operation rate.

To calculate by this way, it needs to consider the following things - 

SAM of Operation

Minimum daily wages of worker and 

Capacity of Operators


Form the daily minimum wages,

we can calculate the hourly and per minute rate of the operators.

From the operator’s capacity,

we can estimate how many pieces an operator can make.

From the SAM of Operation

we can calculate operation rate scientifically.

The scientific way of calculating an operation rate is as the following:
Operation Rate = (SAM of Operation × Rate per minute)

Example for Clear Understanding.
Let us say,

Minimum wage of worker is 9,000 BDT

So per day wage = 9000/30 = 300 BDT

So per hour wage = 300/8 = 37.5 BDT

So per minute wage = 37.5/60 = 0.625 BDT

Now assume,

SAM of operation = 0.75

So per piece rate =  0.75 × 0.625 = 0.46875 BDT

Now assume,

An operator can produce 1200 piece per day. Then he/she will earn-

1200  × 0.46875 = 562 BDT/Day

If the operator worked 26 day per month then he/she will earn per month = 562 × 26 = 14,625 BDT

Minimum wage of worker = 9,000 BDT

By piece rate earning per month = 14,625 BDT 

So the operator will be more motivated to work on this rate.

Note: If the calculated operation rate is less than the monthly wages and an operator cannot earn the monthly minimum wages by working the entire month, then daily minimum wages must be adjusted.

Factors for calculating operation rate are:

The operations difficulty and criticality

Type of machines that operator needs to handle

Type of material and risk that operator needs to handle

So by considering above things the rate can be adjusted.

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