-17.09% is the change from 936 to 776
Calculation steps:
[( 776 - 936 ) ÷ 936] x 100 = -17.09%
Formula
Percentage change = [(776 - 936) / 936] x 100
Subtract the new number by the original number
776 - 936 = -160
-160 ÷ 936 = -0.17094017094017094
-0.17094017094017094 x 100 = -17.09%