146.04% is the change from 278 to 684
Calculation steps:
[( 684 - 278 ) ÷ 278] x 100 = 146.04%
Formula
Percentage change = [(684 - 278) / 278] x 100
Subtract the new number by the original number
684 - 278 = 406
406 ÷ 278 = 1.460431654676259
1.460431654676259 x 100 = 146.04%