1770% is the change from 20 to 374
Calculation steps:
[( 374 - 20 ) ÷ 20] x 100 = 1770%
Formula
Percentage change = [(374 - 20) / 20] x 100
Subtract the new number by the original number
374 - 20 = 354
354 ÷ 20 = 17.7
17.7 x 100 = 1770%
Example