-67.84% is the change from 970 to 312
Calculation steps:
[( 312 - 970 ) ÷ 970] x 100 = -67.84%
Formula
Percentage change = [(312 - 970) / 970] x 100
Subtract the new number by the original number
312 - 970 = -658
-658 ÷ 970 = -0.6783505154639176
-0.6783505154639176 x 100 = -67.84%