78% is the change from 350 to 623
Calculation steps:
[( 623 - 350 ) ÷ 350] x 100 = 78%
Formula
Percentage change = [(623 - 350) / 350] x 100
Subtract the new number by the original number
623 - 350 = 273
273 ÷ 350 = 0.78
0.78 x 100 = 78%
Example