-70.07% is the change from 812 to 243
Calculation steps:
[( 243 - 812 ) ÷ 812] x 100 = -70.07%
Formula
Percentage change = [(243 - 812) / 812] x 100
Subtract the new number by the original number
243 - 812 = -569
-569 ÷ 812 = -0.7007389162561576
-0.7007389162561576 x 100 = -70.07%