5909.09% is the change from 11 to 661
Calculation steps:
[( 661 - 11 ) ÷ 11] x 100 = 5909.09%
Formula
Percentage change = [(661 - 11) / 11] x 100
Subtract the new number by the original number
661 - 11 = 650
650 ÷ 11 = 59.09090909090909
59.09090909090909 x 100 = 5909.09%