-67.09% is the change from 945 to 311
Calculation steps:
[( 311 - 945 ) ÷ 945] x 100 = -67.09%
Formula
Percentage change = [(311 - 945) / 945] x 100
Subtract the new number by the original number
311 - 945 = -634
-634 ÷ 945 = -0.6708994708994709
-0.6708994708994709 x 100 = -67.09%