318.75% is the change from 160 to 670
Calculation steps:
[( 670 - 160 ) ÷ 160] x 100 = 318.75%
Formula
Percentage change = [(670 - 160) / 160] x 100
Subtract the new number by the original number
670 - 160 = 510
510 ÷ 160 = 3.1875
3.1875 x 100 = 318.75%