140.29% is the change from 278 to 668
Calculation steps:
[( 668 - 278 ) ÷ 278] x 100 = 140.29%
Formula
Percentage change = [(668 - 278) / 278] x 100
Subtract the new number by the original number
668 - 278 = 390
390 ÷ 278 = 1.4028776978417266
1.4028776978417266 x 100 = 140.29%