The table given below shows the number of runs scored and number of balls played by 5 batsmen.

Batsmen	No. of runs scored	No. of balls played
J	80	35
K	90	70
L	100	60
M	120	170
N	50	50

Strike rate = \(\rm \frac{Number\ of\ runs\ scored}{Number\ of\ balls\ played}\) × 100

Strike rate of J is what percent of strike rate of N?