-35.8% is the change from 486 to 312
Calculation steps:
[( 312 - 486 ) ÷ 486] x 100 = -35.8%
Formula
Percentage change = [(312 - 486) / 486] x 100
Subtract the new number by the original number
312 - 486 = -174
-174 ÷ 486 = -0.35802469135802467
-0.35802469135802467 x 100 = -35.8%