-52.63% is the change from 57 to 27
Calculation steps:
[( 27 - 57 ) ÷ 57] x 100 = -52.63%
Formula
Percentage change = [(27 - 57) / 57] x 100
Subtract the new number by the original number
27 - 57 = -30
-30 ÷ 57 = -0.5263157894736842
-0.5263157894736842 x 100 = -52.63%