38.08% is the change from 667 to 921
Calculation steps:
[( 921 - 667 ) ÷ 667] x 100 = 38.08%
Formula
Percentage change = [(921 - 667) / 667] x 100
Subtract the new number by the original number
921 - 667 = 254
254 ÷ 667 = 0.3808095952023988
0.3808095952023988 x 100 = 38.08%