-17.92% is the change from 915 to 751
Calculation steps:
[( 751 - 915 ) ÷ 915] x 100 = -17.92%
Formula
Percentage change = [(751 - 915) / 915] x 100
Subtract the new number by the original number
751 - 915 = -164
-164 ÷ 915 = -0.17923497267759564
-0.17923497267759564 x 100 = -17.92%