70.36% is the change from 280 to 477
Calculation steps:
[( 477 - 280 ) ÷ 280] x 100 = 70.36%
Formula
Percentage change = [(477 - 280) / 280] x 100
Subtract the new number by the original number
477 - 280 = 197
197 ÷ 280 = 0.7035714285714286
0.7035714285714286 x 100 = 70.36%