47.83% is the change from 623 to 921
Calculation steps:
[( 921 - 623 ) ÷ 623] x 100 = 47.83%
Formula
Percentage change = [(921 - 623) / 623] x 100
Subtract the new number by the original number
921 - 623 = 298
298 ÷ 623 = 0.478330658105939
0.478330658105939 x 100 = 47.83%