-17.99% is the change from 934 to 766
Calculation steps:
[( 766 - 934 ) ÷ 934] x 100 = -17.99%
Formula
Percentage change = [(766 - 934) / 934] x 100
Subtract the new number by the original number
766 - 934 = -168
-168 ÷ 934 = -0.17987152034261242
-0.17987152034261242 x 100 = -17.99%