78.57% is the change from 476 to 850
Calculation steps:
[( 850 - 476 ) ÷ 476] x 100 = 78.57%
Formula
Percentage change = [(850 - 476) / 476] x 100
Subtract the new number by the original number
850 - 476 = 374
374 ÷ 476 = 0.7857142857142857
0.7857142857142857 x 100 = 78.57%