69.42% is the change from 278 to 471
Calculation steps:
[( 471 - 278 ) ÷ 278] x 100 = 69.42%
Formula
Percentage change = [(471 - 278) / 278] x 100
Subtract the new number by the original number
471 - 278 = 193
193 ÷ 278 = 0.6942446043165468
0.6942446043165468 x 100 = 69.42%