308.92% is the change from 157 to 642
Calculation steps:
[( 642 - 157 ) ÷ 157] x 100 = 308.92%
Formula
Percentage change = [(642 - 157) / 157] x 100
Subtract the new number by the original number
642 - 157 = 485
485 ÷ 157 = 3.089171974522293
3.089171974522293 x 100 = 308.92%