300% is the change from 38 to 152
Calculation steps:
[( 152 - 38 ) ÷ 38] x 100 = 300%
Formula
Percentage change = [(152 - 38) / 38] x 100
Subtract the new number by the original number
152 - 38 = 114
114 ÷ 38 = 3
3 x 100 = 300%
Example