-91.15% is the change from 689 to 61
Calculation steps:
[( 61 - 689 ) ÷ 689] x 100 = -91.15%
Formula
Percentage change = [(61 - 689) / 689] x 100
Subtract the new number by the original number
61 - 689 = -628
-628 ÷ 689 = -0.9114658925979681
-0.9114658925979681 x 100 = -91.15%
Example