-28.53% is the change from 715 to 511
Calculation steps:
[( 511 - 715 ) ÷ 715] x 100 = -28.53%
Formula
Percentage change = [(511 - 715) / 715] x 100
Subtract the new number by the original number
511 - 715 = -204
-204 ÷ 715 = -0.2853146853146853
-0.2853146853146853 x 100 = -28.53%