-17.06% is the change from 938 to 778
Calculation steps:
[( 778 - 938 ) ÷ 938] x 100 = -17.06%
Formula
Percentage change = [(778 - 938) / 938] x 100
Subtract the new number by the original number
778 - 938 = -160
-160 ÷ 938 = -0.17057569296375266
-0.17057569296375266 x 100 = -17.06%