-53.01% is the change from 647 to 304
Calculation steps:
[( 304 - 647 ) ÷ 647] x 100 = -53.01%
Formula
Percentage change = [(304 - 647) / 647] x 100
Subtract the new number by the original number
304 - 647 = -343
-343 ÷ 647 = -0.5301391035548686
-0.5301391035548686 x 100 = -53.01%