The human plasma lipoprotein containing the highest percentage of triacylglycerol by weight is -
Chylomicrons

Maximum triglyceride content → Chylomicrons
Maximum exogenous triglyceride → Chylomicrons
Maximum endogenous triglyceride → VLDL
Maximum cholesterol content → LDL
VLDL
Chylomicrons
HDL
LDL