-62.76% is the change from 666 to 248
Calculation steps:
[( 248 - 666 ) ÷ 666] x 100 = -62.76%
Formula
Percentage change = [(248 - 666) / 666] x 100
Subtract the new number by the original number
248 - 666 = -418
-418 ÷ 666 = -0.6276276276276276
-0.6276276276276276 x 100 = -62.76%