4590.48% is the change from 21 to 985
Calculation steps:
[( 985 - 21 ) ÷ 21] x 100 = 4590.48%
Formula
Percentage change = [(985 - 21) / 21] x 100
Subtract the new number by the original number
985 - 21 = 964
964 ÷ 21 = 45.904761904761905
45.904761904761905 x 100 = 4590.48%