278.41% is the change from 176 to 666
Calculation steps:
[( 666 - 176 ) ÷ 176] x 100 = 278.41%
Formula
Percentage change = [(666 - 176) / 176] x 100
Subtract the new number by the original number
666 - 176 = 490
490 ÷ 176 = 2.784090909090909
2.784090909090909 x 100 = 278.41%