-82.25% is the change from 648 to 115
Calculation steps:
[( 115 - 648 ) ÷ 648] x 100 = -82.25%
Formula
Percentage change = [(115 - 648) / 648] x 100
Subtract the new number by the original number
115 - 648 = -533
-533 ÷ 648 = -0.8225308641975309
-0.8225308641975309 x 100 = -82.25%