3971.43% is the change from 7 to 285
Calculation steps:
[( 285 - 7 ) ÷ 7] x 100 = 3971.43%
Formula
Percentage change = [(285 - 7) / 7] x 100
Subtract the new number by the original number
285 - 7 = 278
278 ÷ 7 = 39.714285714285715
39.714285714285715 x 100 = 3971.43%