1585.71% is the change from 21 to 354
Calculation steps:
[( 354 - 21 ) ÷ 21] x 100 = 1585.71%
Formula
Percentage change = [(354 - 21) / 21] x 100
Subtract the new number by the original number
354 - 21 = 333
333 ÷ 21 = 15.857142857142858
15.857142857142858 x 100 = 1585.71%