7000% is the change from 7 to 497
Calculation steps:
[( 497 - 7 ) ÷ 7] x 100 = 7000%
Formula
Percentage change = [(497 - 7) / 7] x 100
Subtract the new number by the original number
497 - 7 = 490
490 ÷ 7 = 70
70 x 100 = 7000%
Example