3485.71% is the change from 7 to 251
Calculation steps:
[( 251 - 7 ) ÷ 7] x 100 = 3485.71%
Formula
Percentage change = [(251 - 7) / 7] x 100
Subtract the new number by the original number
251 - 7 = 244
244 ÷ 7 = 34.857142857142854
34.857142857142854 x 100 = 3485.71%