37.67% is the change from 669 to 921
Calculation steps:
[( 921 - 669 ) ÷ 669] x 100 = 37.67%
Formula
Percentage change = [(921 - 669) / 669] x 100
Subtract the new number by the original number
921 - 669 = 252
252 ÷ 669 = 0.37668161434977576
0.37668161434977576 x 100 = 37.67%