76.26% is the change from 278 to 490
Calculation steps:
[( 490 - 278 ) ÷ 278] x 100 = 76.26%
Formula
Percentage change = [(490 - 278) / 278] x 100
Subtract the new number by the original number
490 - 278 = 212
212 ÷ 278 = 0.762589928057554
0.762589928057554 x 100 = 76.26%