1885% is the change from 20 to 397
Calculation steps:
[( 397 - 20 ) ÷ 20] x 100 = 1885%
Formula
Percentage change = [(397 - 20) / 20] x 100
Subtract the new number by the original number
397 - 20 = 377
377 ÷ 20 = 18.85
18.85 x 100 = 1885%
Example