2438.46% is the change from 26 to 660
Calculation steps:
[( 660 - 26 ) ÷ 26] x 100 = 2438.46%
Formula
Percentage change = [(660 - 26) / 26] x 100
Subtract the new number by the original number
660 - 26 = 634
634 ÷ 26 = 24.384615384615383
24.384615384615383 x 100 = 2438.46%