-68% is the change from 975 to 312
Calculation steps:
[( 312 - 975 ) ÷ 975] x 100 = -68%
Formula
Percentage change = [(312 - 975) / 975] x 100
Subtract the new number by the original number
312 - 975 = -663
-663 ÷ 975 = -0.68
-0.68 x 100 = -68%
Example