-76.98% is the change from 921 to 212
Calculation steps:
[( 212 - 921 ) ÷ 921] x 100 = -76.98%
Formula
Percentage change = [(212 - 921) / 921] x 100
Subtract the new number by the original number
212 - 921 = -709
-709 ÷ 921 = -0.7698154180238871
-0.7698154180238871 x 100 = -76.98%