-34.86% is the change from 786 to 512
Calculation steps:
[( 512 - 786 ) ÷ 786] x 100 = -34.86%
Formula
Percentage change = [(512 - 786) / 786] x 100
Subtract the new number by the original number
512 - 786 = -274
-274 ÷ 786 = -0.3486005089058524
-0.3486005089058524 x 100 = -34.86%