-21.96% is the change from 979 to 764
Calculation steps:
[( 764 - 979 ) ÷ 979] x 100 = -21.96%
Formula
Percentage change = [(764 - 979) / 979] x 100
Subtract the new number by the original number
764 - 979 = -215
-215 ÷ 979 = -0.21961184882533197
-0.21961184882533197 x 100 = -21.96%