77.45% is the change from 479 to 850
Calculation steps:
[( 850 - 479 ) ÷ 479] x 100 = 77.45%
Formula
Percentage change = [(850 - 479) / 479] x 100
Subtract the new number by the original number
850 - 479 = 371
371 ÷ 479 = 0.7745302713987474
0.7745302713987474 x 100 = 77.45%