-79.37% is the change from 921 to 190
Calculation steps:
[( 190 - 921 ) ÷ 921] x 100 = -79.37%
Formula
Percentage change = [(190 - 921) / 921] x 100
Subtract the new number by the original number
190 - 921 = -731
-731 ÷ 921 = -0.7937024972855592
-0.7937024972855592 x 100 = -79.37%