122.86% is the change from 280 to 624
Calculation steps:
[( 624 - 280 ) ÷ 280] x 100 = 122.86%
Formula
Percentage change = [(624 - 280) / 280] x 100
Subtract the new number by the original number
624 - 280 = 344
344 ÷ 280 = 1.2285714285714286
1.2285714285714286 x 100 = 122.86%