74.1% is the change from 278 to 484
Calculation steps:
[( 484 - 278 ) ÷ 278] x 100 = 74.1%
Formula
Percentage change = [(484 - 278) / 278] x 100
Subtract the new number by the original number
484 - 278 = 206
206 ÷ 278 = 0.7410071942446043
0.7410071942446043 x 100 = 74.1%