-9.98% is the change from 922 to 830
Calculation steps:
[( 830 - 922 ) ÷ 922] x 100 = -9.98%
Formula
Percentage change = [(830 - 922) / 922] x 100
Subtract the new number by the original number
830 - 922 = -92
-92 ÷ 922 = -0.09978308026030369
-0.09978308026030369 x 100 = -9.98%