48.96% is the change from 670 to 998
Calculation steps:
[( 998 - 670 ) ÷ 670] x 100 = 48.96%
Formula
Percentage change = [(998 - 670) / 670] x 100
Subtract the new number by the original number
998 - 670 = 328
328 ÷ 670 = 0.48955223880597015
0.48955223880597015 x 100 = 48.96%