This chart shows changes in how world manufacturing was distributed in 1870 and 1913.

\begin{tabular}{|l|c|c|}
\hline
\multirow{2}{*}{Country} & \multicolumn{2}{|c|}{Percentage of World Manufacturing} \\
\cline{2-3}
& 1870 & 1913 \\
\hline
US & [tex]$23\%$[/tex] & [tex]$36\%$[/tex] \\
\hline
Germany & [tex]$13\%$[/tex] & [tex]$16\%$[/tex] \\
\hline
Great Britain & [tex]$32\%$[/tex] & [tex]$14\%$[/tex] \\
\hline
France & [tex]$10\%$[/tex] & [tex]$6\%$[/tex] \\
\hline
Russia & [tex]$4\%$[/tex] & [tex]$6\%$[/tex] \\
\hline
Belgium & [tex]$3\%$[/tex] & [tex]$2\%$[/tex] \\
\hline
\end{tabular}

Which country showed the greatest percentage increase in world manufacturing from 1870 to 1913?

A. Germany
B. Russia
C. Britain
D. The United States



Answer :

Let's analyze the changes in the percentage of world manufacturing for each country from 1870 to 1913 step by step.

1. United States:
- In 1870: 23%
- In 1913: 36%
- Percentage increase: [tex]\( 36\% - 23\% = 13\% \)[/tex]

2. Germany:
- In 1870: 13%
- In 1913: 16%
- Percentage increase: [tex]\( 16\% - 13\% = 3\% \)[/tex]

3. Great Britain:
- In 1870: 32%
- In 1913: 14%
- Percentage decrease: [tex]\( 14\% - 32\% = -18\% \)[/tex]

4. France:
- In 1870: 10%
- In 1913: 6%
- Percentage decrease: [tex]\( 6\% - 10\% = -4\% \)[/tex]

5. Russia:
- In 1870: 4%
- In 1913: 6%
- Percentage increase: [tex]\( 6\% - 4\% = 2\% \)[/tex]

6. Belgium:
- In 1870: 3%
- In 1913: 2%
- Percentage decrease: [tex]\( 2\% - 3\% = -1\% \)[/tex]

From these calculations, we can see that the United States showed the greatest percentage increase in world manufacturing from 1870 to 1913 with an increase of 13%.

Therefore, the correct answer is: the United States.