The amount of water used per day is 215 liters (L). How many liters (L) of water are saved when you save 0.32 times?
215 0.32 [OP_MUL]
var_a = 215
var_b = 0.32
var_c = var_a * var_b
print('{:.2f}'.format(round(var_c+1e-10,2)))