1709.52% is the change from 21 to 380
Calculation steps:
[( 380 - 21 ) ÷ 21] x 100 = 1709.52%
Formula
Percentage change = [(380 - 21) / 21] x 100
Subtract the new number by the original number
380 - 21 = 359
359 ÷ 21 = 17.095238095238095
17.095238095238095 x 100 = 1709.52%