78.95% is the change from 475 to 850
Calculation steps:
[( 850 - 475 ) ÷ 475] x 100 = 78.95%
Formula
Percentage change = [(850 - 475) / 475] x 100
Subtract the new number by the original number
850 - 475 = 375
375 ÷ 475 = 0.7894736842105263
0.7894736842105263 x 100 = 78.95%