284.16% is the change from 101 to 388
Calculation steps:
[( 388 - 101 ) ÷ 101] x 100 = 284.16%
Formula
Percentage change = [(388 - 101) / 101] x 100
Subtract the new number by the original number
388 - 101 = 287
287 ÷ 101 = 2.8415841584158414
2.8415841584158414 x 100 = 284.16%