$${Q = (\text{algne summaarne massienergia}) – \\ (\text{lõplik summaarne massienergia}) = m_p c^2 – \\ (m_0 c^2 + m_+c^2) = 938,3\, \mathrm{MeV} – (135,0\, \mathrm{MeV} + \\ 139,6\, \mathrm{MeV}) = 663,7\, \mathrm{MeV}}$$