-68.39% is the change from 987 to 312
Calculation steps:
[( 312 - 987 ) ÷ 987] x 100 = -68.39%
Formula
Percentage change = [(312 - 987) / 987] x 100
Subtract the new number by the original number
312 - 987 = -675
-675 ÷ 987 = -0.6838905775075987
-0.6838905775075987 x 100 = -68.39%