146.43% is the change from 280 to 690
Calculation steps:
[( 690 - 280 ) ÷ 280] x 100 = 146.43%
Formula
Percentage change = [(690 - 280) / 280] x 100
Subtract the new number by the original number
690 - 280 = 410
410 ÷ 280 = 1.4642857142857142
1.4642857142857142 x 100 = 146.43%