This was down to a Woocommerce setting.
Woocommerce -> Settings -> Tax -> Rounding
untick “Round tax at subtotal level, instead of rounding per line”.
This will stop the bad rounding.
This was down to a Woocommerce setting.
Woocommerce -> Settings -> Tax -> Rounding
untick “Round tax at subtotal level, instead of rounding per line”.
This will stop the bad rounding.