3.6X0.99=3.6×(1-0.01)=3.6-0.036=3.564
3.6X(1-0.01)=3.6-3.6X0.01=3.6-0.036=3.564
=3.6×(1-0.01)=3.6×1-3.6×0.01=3.6-0.036=3.564
3.6×0.99=3.6×(1-0.01)=3.6×1-3.6×0.01=3.6-0.036=3.564