1595% is the change from 20 to 339
Calculation steps:
[( 339 - 20 ) ÷ 20] x 100 = 1595%
Formula
Percentage change = [(339 - 20) / 20] x 100
Subtract the new number by the original number
339 - 20 = 319
319 ÷ 20 = 15.95
15.95 x 100 = 1595%
Example