Need help finding percentage difference. I found unbalanced force but I'm not exactly sure if it is correct. Thank you for the help.

.. PHYSICS EXPERIMT . .T Lab 4 ACCELERATION - ATWOOD'S MACHINE NAME SECTION . PAGE 3 DATA AND ANALYSIS: L. Complete the date telies below by recording all measurements and calculating the average time. . Use equation a ; from the introduction, to calculate the accelerations. ';;" .. . MASS ON SIDE ONE AT START.(mi).fetame!Equilibrium)_-50 Gus MASS ON SIDE TWO AT START (m; )Istaffe Equilibrium'l_5 0 gus MASS ADDED TO SIDE TWO TO BALANCE -FRICTION ......?.1 0 Cus TOTAL MASS OF BOTH THE ASCENDING AND THE DESCENDING SIDES OF THE SYSTEM(M) ......>. . 1. 10 guns TABLE | Distance 92 Cmas EXPERIMENTAL MASS TIME OF TRIALS AVERAGE ACCELERATION TRANSFERRED TIME (1) a= 2d cm m fe m, ( m) (5 ) (5 ) 1 52 5 1. 82 1. 89 1. 73 1.81 10.562 2 10 1.51 1.46 131 1:43 0 . 900 3 15 1. 31 1,27 1,14 1.24 1.197 4 20 14.19 1.19 1 1 1.14- -1. 17 - 10. 344 51 25 1:100 1. 01 . 1 14 1 87 1.607 2. Complete Table 2 below by calculating the unbalanced force causing the acceleration, for each of the masses transferred from m, to my, ising the equation for the weight of the transferred mass, F = @ mg. Alco, calculate the acceleration that should be produced by this unbalanced force on the total mass (M) of the moving system using the equation a = F/M. TABLE 2 ACCEPTED MASS UNBALANCED CALCULATED PERCENTAGE TRANSFERRED FORCE (F) ACCELERATION DIFFERENCE ( ) ( M 5 X9.8 = 49 2 10 10x 9.8 - 98. 3 15 15 X9.8 - 1471 20 box98 - 196 25 145 x9.8: 245