Revised Standard Cost of Actual Output

Dear Sir,

Can you show me where I got wrong on the below question, it is about standard cost:

EFB manufactures paint from 3 ingredients: Pigments, Resin and Solvent
Ech batch consists of 10 kgs of ingredients from which 180 pots painty of acceptable quality should be manufactured
Planned to make 10 batches/ month

Standard cost:
Pigments = 2kgs @ €30/kg
Resin = 7.5kgs @ €15/kg
Solvent = 0.5 kgs @ €120/kg

Revised standard cost after first month:
Pigments = 1.8kgs @ €33/kg
Resin = 7.5kgs @ €15/kg
Solvent = 0.5 kgs @ €120/kg

In month 2, 11 batches were made with only 1845 good quality pots of paint.

The actual Input and cost:
Pigments = 21kgs @ €32/kg
Resin = 80.5kgs @ €16/kg
Solvent = 6.5 kgs @ €110/kg

QUESTION:
Calculate the revised standard cost of actual output

ANSWER
I used the revised standard cost:
9.8kgs produce 180 pots.
Hence, 1845 post should have used 100.45 kgs ((1845*9.8)/180)

From there I got the input should have been:
Pigments = 18.45 kgs @ €33/kg = €608.85
Resin = 76.875 kgs @ €15/kg = €1153.125
Solvent = 5.125 kgs @ €120/kg = €615

So the revised standard cost of actual output is €2375.975

SOLUTION
Revised budgeted cost of standard monthly production, based on the revised standard cost:

Pigments = 1.8kgs @ €33/kg = €59.4
Resin = 7.5kgs @ €15/kg = €112.50
Solvent = 0.5 kgs @ €120/kg = €60
Total for 10 batches is = (59.4+112.5+60)*10 = €2319

Revised standard cost per pot:
2319/ (180 pots per batch * 10 batches per month) = €1.2883333

The standard cost of actual output:
1.2883333 * 1845 actual pots produced = €2377

QUERY:
I do understand the solution. However, I couldnt figure out where I got wrong on my answer.

Many thanks,
Angela