-61.28% is the change from 266 to 103
Calculation steps:
[( 103 - 266 ) ÷ 266] x 100 = -61.28%
Formula
Percentage change = [(103 - 266) / 266] x 100
Subtract the new number by the original number
103 - 266 = -163
-163 ÷ 266 = -0.6127819548872181
-0.6127819548872181 x 100 = -61.28%