398.52% is the change from 135 to 673
Calculation steps:
[( 673 - 135 ) ÷ 135] x 100 = 398.52%
Formula
Percentage change = [(673 - 135) / 135] x 100
Subtract the new number by the original number
673 - 135 = 538
538 ÷ 135 = 3.9851851851851854
3.9851851851851854 x 100 = 398.52%