135.44% is the change from 285 to 671
Calculation steps:
[( 671 - 285 ) ÷ 285] x 100 = 135.44%
Formula
Percentage change = [(671 - 285) / 285] x 100
Subtract the new number by the original number
671 - 285 = 386
386 ÷ 285 = 1.3543859649122807
1.3543859649122807 x 100 = 135.44%