2790.48% is the change from 21 to 607
Calculation steps:
[( 607 - 21 ) ÷ 21] x 100 = 2790.48%
Formula
Percentage change = [(607 - 21) / 21] x 100
Subtract the new number by the original number
607 - 21 = 586
586 ÷ 21 = 27.904761904761905
27.904761904761905 x 100 = 2790.48%