296.04% is the change from 101 to 400
Calculation steps:
[( 400 - 101 ) ÷ 101] x 100 = 296.04%
Formula
Percentage change = [(400 - 101) / 101] x 100
Subtract the new number by the original number
400 - 101 = 299
299 ÷ 101 = 2.9603960396039604
2.9603960396039604 x 100 = 296.04%