316.83% is the change from 101 to 421
Calculation steps:
[( 421 - 101 ) ÷ 101] x 100 = 316.83%
Formula
Percentage change = [(421 - 101) / 101] x 100
Subtract the new number by the original number
421 - 101 = 320
320 ÷ 101 = 3.1683168316831685
3.1683168316831685 x 100 = 316.83%