76.43% is the change from 280 to 494
Calculation steps:
[( 494 - 280 ) ÷ 280] x 100 = 76.43%
Formula
Percentage change = [(494 - 280) / 280] x 100
Subtract the new number by the original number
494 - 280 = 214
214 ÷ 280 = 0.7642857142857142
0.7642857142857142 x 100 = 76.43%