-78.5% is the change from 535 to 115
Calculation steps:
[( 115 - 535 ) ÷ 535] x 100 = -78.5%
Formula
Percentage change = [(115 - 535) / 535] x 100
Subtract the new number by the original number
115 - 535 = -420
-420 ÷ 535 = -0.7850467289719626
-0.7850467289719626 x 100 = -78.5%