  We present new analytical solutions for the evolution of protoplanetary discs
(PPDs) where magnetohydrodynamic (MHD) wind-driven processes dominate. Our
study uses a 1D model which incorporates equations detailing angular momentum
extraction by MHD winds and mass-loss rates. Our solutions demonstrate that the
disc retains its initial state during the early phases; however, it rapidly
evolves towards a self-similar state in the later stages of disc evolution. The
total disc mass undergoes a continuous decline over time, with a particularly
rapid reduction occurring beyond a certain critical time threshold. This
gradual decrease in mass is influenced by the wind parameters and the initial
surface density of the disc. In the MHD wind-dominated regime, we show that the
disc's lifespan correlates positively with the magnetic lever arm up to a
certain threshold, irrespective of the initial disc size. PPDs with a larger
magnetic lever arm are found to maintain significantly higher total disc mass
over extended periods compared to their counterparts. The mass
ejection-to-accretion ratio increases in efficient wind scenarios and is
further amplified by a steeper initial surface density profile. Our analysis
also reveals varied evolutionary trajectories in the plane of accretion rate
and total disc mass, influenced by magnetic parameters and initial disc size.
In scenarios with efficient MHD winds, discs with bigger sizes have extended
operation time for mechanisms governing planet formation.
