5900% is the change from 7 to 420
Calculation steps:
[( 420 - 7 ) ÷ 7] x 100 = 5900%
Formula
Percentage change = [(420 - 7) / 7] x 100
Subtract the new number by the original number
420 - 7 = 413
413 ÷ 7 = 59
59 x 100 = 5900%
Example