1790% is the change from 20 to 378
Calculation steps:
[( 378 - 20 ) ÷ 20] x 100 = 1790%
Formula
Percentage change = [(378 - 20) / 20] x 100
Subtract the new number by the original number
378 - 20 = 358
358 ÷ 20 = 17.9
17.9 x 100 = 1790%
Example