123.02% is the change from 278 to 620
Calculation steps:
[( 620 - 278 ) ÷ 278] x 100 = 123.02%
Formula
Percentage change = [(620 - 278) / 278] x 100
Subtract the new number by the original number
620 - 278 = 342
342 ÷ 278 = 1.2302158273381294
1.2302158273381294 x 100 = 123.02%