-16.17% is the change from 915 to 767
Calculation steps:
[( 767 - 915 ) ÷ 915] x 100 = -16.17%
Formula
Percentage change = [(767 - 915) / 915] x 100
Subtract the new number by the original number
767 - 915 = -148
-148 ÷ 915 = -0.16174863387978142
-0.16174863387978142 x 100 = -16.17%