-15.99% is the change from 913 to 767
Calculation steps:
[( 767 - 913 ) ÷ 913] x 100 = -15.99%
Formula
Percentage change = [(767 - 913) / 913] x 100
Subtract the new number by the original number
767 - 913 = -146
-146 ÷ 913 = -0.15991237677984665
-0.15991237677984665 x 100 = -15.99%