5471.43% is the change from 7 to 390
Calculation steps:
[( 390 - 7 ) ÷ 7] x 100 = 5471.43%
Formula
Percentage change = [(390 - 7) / 7] x 100
Subtract the new number by the original number
390 - 7 = 383
383 ÷ 7 = 54.714285714285715
54.714285714285715 x 100 = 5471.43%