2857.14% is the change from 7 to 207
Calculation steps:
[( 207 - 7 ) ÷ 7] x 100 = 2857.14%
Formula
Percentage change = [(207 - 7) / 7] x 100
Subtract the new number by the original number
207 - 7 = 200
200 ÷ 7 = 28.571428571428573
28.571428571428573 x 100 = 2857.14%