-95.15% is the change from 557 to 27
Calculation steps:
[( 27 - 557 ) ÷ 557] x 100 = -95.15%
Formula
Percentage change = [(27 - 557) / 557] x 100
Subtract the new number by the original number
27 - 557 = -530
-530 ÷ 557 = -0.9515260323159784
-0.9515260323159784 x 100 = -95.15%