Faulty Pendulums

The time period of a simple pendulum is given by the relation $T=2 \pi \sqrt{\frac{l}{g}}$

By what % should the length be changed in order to correct a loss of 2 minutes per day?

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Details & Assumptions:

$g$ is a constant.

If your answer is $\frac{100}{N}$ %, put your answer as $N$ .