-82% is the change from 689 to 124
Calculation steps:
[( 124 - 689 ) ÷ 689] x 100 = -82%
Formula
Percentage change = [(124 - 689) / 689] x 100
Subtract the new number by the original number
124 - 689 = -565
-565 ÷ 689 = -0.8200290275761973
-0.8200290275761973 x 100 = -82%