-20.2% is the change from 921 to 735
Calculation steps:
[( 735 - 921 ) ÷ 921] x 100 = -20.2%
Formula
Percentage change = [(735 - 921) / 921] x 100
Subtract the new number by the original number
735 - 921 = -186
-186 ÷ 921 = -0.20195439739413681
-0.20195439739413681 x 100 = -20.2%