76.79% is the change from 280 to 495
Calculation steps:
[( 495 - 280 ) ÷ 280] x 100 = 76.79%
Formula
Percentage change = [(495 - 280) / 280] x 100
Subtract the new number by the original number
495 - 280 = 215
215 ÷ 280 = 0.7678571428571429
0.7678571428571429 x 100 = 76.79%