-67.3% is the change from 263 to 86
Calculation steps:
[( 86 - 263 ) ÷ 263] x 100 = -67.3%
Formula
Percentage change = [(86 - 263) / 263] x 100
Subtract the new number by the original number
86 - 263 = -177
-177 ÷ 263 = -0.6730038022813688
-0.6730038022813688 x 100 = -67.3%