If the apr of the rewards for the LP is 45% produced by 124 ZINGs per day and a liquidity worth $105, it is easy to calculate the approximation of the APR of the Vials without doing precise calculations because it is enough to make a proportion.
Pool ($105 investment): 124 ZING per day = 45%
5 Vials ($100 investment): 1127 ZING per day = about 400%.

But wanting to do the precise calculations, 1 VIAL costs $20 and returns about $0.18 per day in ZING tokens.
In this case applying the formula the APR is 328.5%.