-63.31% is the change from 248 to 91
Calculation steps:
[( 91 - 248 ) ÷ 248] x 100 = -63.31%
Formula
Percentage change = [(91 - 248) / 248] x 100
Subtract the new number by the original number
91 - 248 = -157
-157 ÷ 248 = -0.6330645161290323
-0.6330645161290323 x 100 = -63.31%