34.73% is the change from 668 to 900
Calculation steps:
[( 900 - 668 ) ÷ 668] x 100 = 34.73%
Formula
Percentage change = [(900 - 668) / 668] x 100
Subtract the new number by the original number
900 - 668 = 232
232 ÷ 668 = 0.3473053892215569
0.3473053892215569 x 100 = 34.73%