# Price Elasticity and Total revenue

So my question is, they say when the demand is inelastic and we raise the price the total revenue goes up, now suppose a 25% rise in price results in a 24% fall in demand, and I know it is very close to unit elasticity but technically is still inelastic as $dQ/dP < 1$,

So technically $(1-0.24)*Q*(1+0.25)*P$ should still result as $0.95PQ$ which is a decrease in Total revenue So if I'm wrong here can someone please correct me? In case if I'm right then can someone give me a more better understanding as to how much relative change in quantity should come wrt to price so that we can call it safetly inelastic