-35.24% is the change from 647 to 419
Calculation steps:
[( 419 - 647 ) ÷ 647] x 100 = -35.24%
Formula
Percentage change = [(419 - 647) / 647] x 100
Subtract the new number by the original number
419 - 647 = -228
-228 ÷ 647 = -0.35239567233384855
-0.35239567233384855 x 100 = -35.24%