-18.57% is the change from 921 to 750
Calculation steps:
[( 750 - 921 ) ÷ 921] x 100 = -18.57%
Formula
Percentage change = [(750 - 921) / 921] x 100
Subtract the new number by the original number
750 - 921 = -171
-171 ÷ 921 = -0.18566775244299674
-0.18566775244299674 x 100 = -18.57%