-5.1% is the change from 921 to 874
Calculation steps:
[( 874 - 921 ) ÷ 921] x 100 = -5.1%
Formula
Percentage change = [(874 - 921) / 921] x 100
Subtract the new number by the original number
874 - 921 = -47
-47 ÷ 921 = -0.051031487513572206
-0.051031487513572206 x 100 = -5.1%