74.68% is the change from 470 to 821
Calculation steps:
[( 821 - 470 ) ÷ 470] x 100 = 74.68%
Formula
Percentage change = [(821 - 470) / 470] x 100
Subtract the new number by the original number
821 - 470 = 351
351 ÷ 470 = 0.7468085106382979
0.7468085106382979 x 100 = 74.68%