-9.9% is the change from 838 to 755
Calculation steps:
[( 755 - 838 ) ÷ 838] x 100 = -9.9%
Formula
Percentage change = [(755 - 838) / 838] x 100
Subtract the new number by the original number
755 - 838 = -83
-83 ÷ 838 = -0.09904534606205251
-0.09904534606205251 x 100 = -9.9%