0.45% is the change from 666 to 669
Calculation steps:
[( 669 - 666 ) ÷ 666] x 100 = 0.45%
Formula
Percentage change = [(669 - 666) / 666] x 100
Subtract the new number by the original number
669 - 666 = 3
3 ÷ 666 = 0.0045045045045045045
0.0045045045045045045 x 100 = 0.45%