\(-62.\left(27-64\right)-64.\left(62-27\right)\)
\(=\left(-67\right).27+62.64-\left(-64\right).62+64.27\)
\(=\left(-67\right).27+64.27+62.24+64.62\)
\(=27.\left(-67+64\right)+62.\left(24+64\right)\)
\(=27.\left(-3\right)+62.88\)
\(=-81+5456\)
\(=5375\)