-6.76% is the change from 577 to 538
Calculation steps:
[( 538 - 577 ) ÷ 577] x 100 = -6.76%
Formula
Percentage change = [(538 - 577) / 577] x 100
Subtract the new number by the original number
538 - 577 = -39
-39 ÷ 577 = -0.06759098786828423
-0.06759098786828423 x 100 = -6.76%