275.28% is the change from 178 to 668
Calculation steps:
[( 668 - 178 ) ÷ 178] x 100 = 275.28%
Formula
Percentage change = [(668 - 178) / 178] x 100
Subtract the new number by the original number
668 - 178 = 490
490 ÷ 178 = 2.752808988764045
2.752808988764045 x 100 = 275.28%