-16.84% is the change from 938 to 780
Calculation steps:
[( 780 - 938 ) ÷ 938] x 100 = -16.84%
Formula
Percentage change = [(780 - 938) / 938] x 100
Subtract the new number by the original number
780 - 938 = -158
-158 ÷ 938 = -0.16844349680170576
-0.16844349680170576 x 100 = -16.84%