-18.8% is the change from 915 to 743
Calculation steps:
[( 743 - 915 ) ÷ 915] x 100 = -18.8%
Formula
Percentage change = [(743 - 915) / 915] x 100
Subtract the new number by the original number
743 - 915 = -172
-172 ÷ 915 = -0.18797814207650274
-0.18797814207650274 x 100 = -18.8%