9500% is the change from 3 to 288
Calculation steps:
[( 288 - 3 ) ÷ 3] x 100 = 9500%
Formula
Percentage change = [(288 - 3) / 3] x 100
Subtract the new number by the original number
288 - 3 = 285
285 ÷ 3 = 95
95 x 100 = 9500%
Example