78.2% is the change from 477 to 850
Calculation steps:
[( 850 - 477 ) ÷ 477] x 100 = 78.2%
Formula
Percentage change = [(850 - 477) / 477] x 100
Subtract the new number by the original number
850 - 477 = 373
373 ÷ 477 = 0.7819706498951782
0.7819706498951782 x 100 = 78.2%