-90.83% is the change from 611 to 56
Calculation steps:
[( 56 - 611 ) ÷ 611] x 100 = -90.83%
Formula
Percentage change = [(56 - 611) / 611] x 100
Subtract the new number by the original number
56 - 611 = -555
-555 ÷ 611 = -0.9083469721767594
-0.9083469721767594 x 100 = -90.83%