-8.99% is the change from 612 to 557
Calculation steps:
[( 557 - 612 ) ÷ 612] x 100 = -8.99%
Formula
Percentage change = [(557 - 612) / 612] x 100
Subtract the new number by the original number
557 - 612 = -55
-55 ÷ 612 = -0.08986928104575163
-0.08986928104575163 x 100 = -8.99%