3450% is the change from 4 to 142
Calculation steps:
[( 142 - 4 ) ÷ 4] x 100 = 3450%
Formula
Percentage change = [(142 - 4) / 4] x 100
Subtract the new number by the original number
142 - 4 = 138
138 ÷ 4 = 34.5
34.5 x 100 = 3450%
Example