-95.43% is the change from 591 to 27
Calculation steps:
[( 27 - 591 ) ÷ 591] x 100 = -95.43%
Formula
Percentage change = [(27 - 591) / 591] x 100
Subtract the new number by the original number
27 - 591 = -564
-564 ÷ 591 = -0.9543147208121827
-0.9543147208121827 x 100 = -95.43%