Economic growth in any country in the world corresponds to a rise in demand for various services and goods. One of the services that has recently increased demand in the Qatari market is accounting services.

Accounting firms provide the following services:

$1.$ Auditing

$2.$ Operational Bookkeeping and Payroll

$3.$ Business Development and Valuation

$4.$ Tax Planning and Preparation

The size of the accounting market in Qatar in $2020$ was half a billion Qatari riyals. The market is dominated by four large global companies, with a combined share of $80\%$ of the market. The companies are Deloitte, KPMG$,$ PwC$,$ and Ernest Young. The remaining $20\%$ is for Qatari companies, which are of two types: commercial companies and companies owned by certified Qatari accountants. Commercial companies have a market share of $15\%$ and the remaining $5\%$ for companies owned by Qatari accountants. Commercial companies are companies owned by Qataris who are not specialized in accounting and with partners with whom they have knowledge of accounting.

$1.$ If I know that Deloitte's sales of accounting services were QAR $100$ million in $2020,$ what is the company's share in the Qatari market?

$2.$ Deloitte has an estimated $10\%$ share of the $$1\mathrm{.}5$ billion U$.$S$.$ market, compared to the first question: Is the company's performance in the Qatari market better or in the U$.$S$.$ market?

$3.$ Tax planning and preparation is a new service, and it was provided by only major companies in the Qatari market.

$$ Major companies achieved the following sales by introducing this new service in $2020$:

$$ Deloitte QAR $20$M

$$ PwC $30$M

$$ Ernest In Young and KPMG each achieved $15$ million

During the last year $2020,$ Qatar Integration Company entered this market and achieved sales estimated at $10$ million Qatari Riyals.

a$.$ What is the share of Takamul Company in the tax services market?

b$.$ What are the shares of the rest of the companies? How do you evaluate the performance of Takamul Company?