-90.11% is the change from 566 to 56
Calculation steps:
[( 56 - 566 ) ÷ 566] x 100 = -90.11%
Formula
Percentage change = [(56 - 566) / 566] x 100
Subtract the new number by the original number
56 - 566 = -510
-510 ÷ 566 = -0.901060070671378
-0.901060070671378 x 100 = -90.11%