-66.92% is the change from 266 to 88
Calculation steps:
[( 88 - 266 ) ÷ 266] x 100 = -66.92%
Formula
Percentage change = [(88 - 266) / 266] x 100
Subtract the new number by the original number
88 - 266 = -178
-178 ÷ 266 = -0.6691729323308271
-0.6691729323308271 x 100 = -66.92%