3000% is the change from 4 to 124
Calculation steps:
[( 124 - 4 ) ÷ 4] x 100 = 3000%
Formula
Percentage change = [(124 - 4) / 4] x 100
Subtract the new number by the original number
124 - 4 = 120
120 ÷ 4 = 30
30 x 100 = 3000%
Example