-18.73% is the change from 945 to 768
Calculation steps:
[( 768 - 945 ) ÷ 945] x 100 = -18.73%
Formula
Percentage change = [(768 - 945) / 945] x 100
Subtract the new number by the original number
768 - 945 = -177
-177 ÷ 945 = -0.1873015873015873
-0.1873015873015873 x 100 = -18.73%