-40.02% is the change from 812 to 487
Calculation steps:
[( 487 - 812 ) ÷ 812] x 100 = -40.02%
Formula
Percentage change = [(487 - 812) / 812] x 100
Subtract the new number by the original number
487 - 812 = -325
-325 ÷ 812 = -0.4002463054187192
-0.4002463054187192 x 100 = -40.02%