-17.78% is the change from 939 to 772
Calculation steps:
[( 772 - 939 ) ÷ 939] x 100 = -17.78%
Formula
Percentage change = [(772 - 939) / 939] x 100
Subtract the new number by the original number
772 - 939 = -167
-167 ÷ 939 = -0.17784877529286475
-0.17784877529286475 x 100 = -17.78%