29.75% is the change from 669 to 868
Calculation steps:
[( 868 - 669 ) ÷ 669] x 100 = 29.75%
Formula
Percentage change = [(868 - 669) / 669] x 100
Subtract the new number by the original number
868 - 669 = 199
199 ÷ 669 = 0.2974588938714499
0.2974588938714499 x 100 = 29.75%