fix(sdk): fix modification of price and volume unit conversion

[kevinypfan]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.66667% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 99.65%. Comparing base (1424464) to head (9007b71).

❗ Current head 9007b71 differs from pull request most recent head 9961193. Consider uploading reports for the commit 9961193 to get more accurate results

Files	Patch %	Lines
src/placed-order.ts	87.50%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##            master       #9      +/-   ##
===========================================
- Coverage   100.00%   99.65%   -0.35%     
===========================================
  Files           19       19              
  Lines          281      292      +11     
  Branches        42       48       +6     
===========================================
+ Hits           281      291      +10     
- Misses           0        1       +1     

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