4261.9% is the change from 21 to 916
Calculation steps:
[( 916 - 21 ) ÷ 21] x 100 = 4261.9%
Formula
Percentage change = [(916 - 21) / 21] x 100
Subtract the new number by the original number
916 - 21 = 895
895 ÷ 21 = 42.61904761904762
42.61904761904762 x 100 = 4261.9%