-27.79% is the change from 709 to 512
Calculation steps:
[( 512 - 709 ) ÷ 709] x 100 = -27.79%
Formula
Percentage change = [(512 - 709) / 709] x 100
Subtract the new number by the original number
512 - 709 = -197
-197 ÷ 709 = -0.2778561354019746
-0.2778561354019746 x 100 = -27.79%