-15.95% is the change from 608 to 511
Calculation steps:
[( 511 - 608 ) ÷ 608] x 100 = -15.95%
Formula
Percentage change = [(511 - 608) / 608] x 100
Subtract the new number by the original number
511 - 608 = -97
-97 ÷ 608 = -0.15953947368421054
-0.15953947368421054 x 100 = -15.95%