64,80,100,125.... the increments are 16, 20, 25 so, in this case the increment is 1/4 of the original quantity
16 is 1/4 of 64, 20 is 1/4 of 80, 25 is 1/4 of 100
so the grow rate is 1/4 = 0.25
in percent, it is 25%
64,112,196,343.... the increments are 48, 84, 147 so, in this case, the increment is 3/4 of the original quantity
48 is 3/4 of 64, 84 is 3/4 of 112 and 147 is 3/4 of 196
so the grow rate is 3/4 = 0.75
in percent, it is 75%
64,128,256,512.... the increments are 64, 128, 256 so, in this case, the increment is equal to the original quantity
so the grow rate is 1
in percent, it is 100%
125,100,80,64.... the decrements are 25, 20, 16 so, in this case the decrement is 1/5 of the original quantity
25 is 1/5 of 125, 20 is 1/5 of 100 and 16 is 1/5 of 80
the quantities decrease, so the grow rate is negative: -1/5 = -0.2
in percent, it is -20%