A number is first increased by 16% and then increased by 20%. The number so obtained is now decreased by 40%. The net decrease percentage in the original number is:
1
\( 16 \frac{12}{25} \% \)
2
\( 15 \frac{9}{25} \% \)
3
\( 11 \frac{13}{25} \% \)
4
\(13 \frac{7}{25} \%\)