3650% is the change from 20 to 750
Calculation steps:
[( 750 - 20 ) ÷ 20] x 100 = 3650%
Formula
Percentage change = [(750 - 20) / 20] x 100
Subtract the new number by the original number
750 - 20 = 730
730 ÷ 20 = 36.5
36.5 x 100 = 3650%
Example