-43.55% is the change from 907 to 512
Calculation steps:
[( 512 - 907 ) ÷ 907] x 100 = -43.55%
Formula
Percentage change = [(512 - 907) / 907] x 100
Subtract the new number by the original number
512 - 907 = -395
-395 ÷ 907 = -0.4355016538037486
-0.4355016538037486 x 100 = -43.55%