-98.5% is the change from 266 to 4
Calculation steps:
[( 4 - 266 ) ÷ 266] x 100 = -98.5%
Formula
Percentage change = [(4 - 266) / 266] x 100
Subtract the new number by the original number
4 - 266 = -262
-262 ÷ 266 = -0.9849624060150376
-0.9849624060150376 x 100 = -98.5%