-37.56% is the change from 647 to 404
Calculation steps:
[( 404 - 647 ) ÷ 647] x 100 = -37.56%
Formula
Percentage change = [(404 - 647) / 647] x 100
Subtract the new number by the original number
404 - 647 = -243
-243 ÷ 647 = -0.3755795981452859
-0.3755795981452859 x 100 = -37.56%