-66.74% is the change from 938 to 312
Calculation steps:
[( 312 - 938 ) ÷ 938] x 100 = -66.74%
Formula
Percentage change = [(312 - 938) / 938] x 100
Subtract the new number by the original number
312 - 938 = -626
-626 ÷ 938 = -0.6673773987206824
-0.6673773987206824 x 100 = -66.74%