1605% is the change from 20 to 341
Calculation steps:
[( 341 - 20 ) ÷ 20] x 100 = 1605%
Formula
Percentage change = [(341 - 20) / 20] x 100
Subtract the new number by the original number
341 - 20 = 321
321 ÷ 20 = 16.05
16.05 x 100 = 1605%
Example