The percentage change in the sales of Toshiba in 1999 is approximately :

Answer: Option C

Total sales in 1998 = 7890
Sales of Toshiba = 12%
= $$\frac{7890\times 12}{100}$$
= 946.8
≈ 947

Total sales in 1999
= 7890 + (16.5% of 7890)
= 9191
Sales of Toshiba
= 8% of 9191
= 735

Change in sales
= 947 - 735
= 212
% change
= $$\frac{212\times 100}{986}$$
= 21.5%
≈ 22%