394.07% is the change from 135 to 667
Calculation steps:
[( 667 - 135 ) ÷ 135] x 100 = 394.07%
Formula
Percentage change = [(667 - 135) / 135] x 100
Subtract the new number by the original number
667 - 135 = 532
532 ÷ 135 = 3.9407407407407407
3.9407407407407407 x 100 = 394.07%