69.6% is the change from 477 to 809
Calculation steps:
[( 809 - 477 ) ÷ 477] x 100 = 69.6%
Formula
Percentage change = [(809 - 477) / 477] x 100
Subtract the new number by the original number
809 - 477 = 332
332 ÷ 477 = 0.6960167714884696
0.6960167714884696 x 100 = 69.6%