650% is the change from 56 to 420
Calculation steps:
[( 420 - 56 ) ÷ 56] x 100 = 650%
Formula
Percentage change = [(420 - 56) / 56] x 100
Subtract the new number by the original number
420 - 56 = 364
364 ÷ 56 = 6.5
6.5 x 100 = 650%
Example