-21.62% is the change from 990 to 776
Calculation steps:
[( 776 - 990 ) ÷ 990] x 100 = -21.62%
Formula
Percentage change = [(776 - 990) / 990] x 100
Subtract the new number by the original number
776 - 990 = -214
-214 ÷ 990 = -0.21616161616161617
-0.21616161616161617 x 100 = -21.62%