386.14% is the change from 101 to 491
Calculation steps:
[( 491 - 101 ) ÷ 101] x 100 = 386.14%
Formula
Percentage change = [(491 - 101) / 101] x 100
Subtract the new number by the original number
491 - 101 = 390
390 ÷ 101 = 3.8613861386138613
3.8613861386138613 x 100 = 386.14%