Adding a certain number to 0.46 three times gives you 0.72. What is the certain number?
0.72 0.46 [OP_SUB] 0.46 [OP_SUB] 0.46 [OP_SUB]
var_a = 0.72
var_b = 0.46
var_c = var_a - var_b
var_d = 0.46
var_e = var_c - var_d
var_f = 0.46
var_g = var_e - var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))