-41.27% is the change from 647 to 380
Calculation steps:
[( 380 - 647 ) ÷ 647] x 100 = -41.27%
Formula
Percentage change = [(380 - 647) / 647] x 100
Subtract the new number by the original number
380 - 647 = -267
-267 ÷ 647 = -0.4126738794435858
-0.4126738794435858 x 100 = -41.27%