-15.49% is the change from 917 to 775
Calculation steps:
[( 775 - 917 ) ÷ 917] x 100 = -15.49%
Formula
Percentage change = [(775 - 917) / 917] x 100
Subtract the new number by the original number
775 - 917 = -142
-142 ÷ 917 = -0.15485278080697928
-0.15485278080697928 x 100 = -15.49%