-40.11% is the change from 566 to 339
Calculation steps:
[( 339 - 566 ) ÷ 566] x 100 = -40.11%
Formula
Percentage change = [(339 - 566) / 566] x 100
Subtract the new number by the original number
339 - 566 = -227
-227 ÷ 566 = -0.4010600706713781
-0.4010600706713781 x 100 = -40.11%