-17.7% is the change from 921 to 758
Calculation steps:
[( 758 - 921 ) ÷ 921] x 100 = -17.7%
Formula
Percentage change = [(758 - 921) / 921] x 100
Subtract the new number by the original number
758 - 921 = -163
-163 ÷ 921 = -0.1769815418023887
-0.1769815418023887 x 100 = -17.7%