-81.18% is the change from 611 to 115
Calculation steps:
[( 115 - 611 ) ÷ 611] x 100 = -81.18%
Formula
Percentage change = [(115 - 611) / 611] x 100
Subtract the new number by the original number
115 - 611 = -496
-496 ÷ 611 = -0.8117839607201309
-0.8117839607201309 x 100 = -81.18%