The time period of a simple pendulum is given by  $T=2\pi \sqrt{\frac{l}{g}}$. The measured value of the length of pendulum  is 10cm known to a 1 mm accurancy. The time for 200 oscillations of the pendulum is found to be 100 second using a clock of 1 s resolution. The percentage accuracy in the determination of ‘g’ using this pendulum is ‘x’. The value of ‘x’ to the nearest integer is