9400% is the change from 3 to 285
Calculation steps:
[( 285 - 3 ) ÷ 3] x 100 = 9400%
Formula
Percentage change = [(285 - 3) / 3] x 100
Subtract the new number by the original number
285 - 3 = 282
282 ÷ 3 = 94
94 x 100 = 9400%
Example