-28.59% is the change from 647 to 462
Calculation steps:
[( 462 - 647 ) ÷ 647] x 100 = -28.59%
Formula
Percentage change = [(462 - 647) / 647] x 100
Subtract the new number by the original number
462 - 647 = -185
-185 ÷ 647 = -0.28593508500772796
-0.28593508500772796 x 100 = -28.59%