-73.31% is the change from 266 to 71
Calculation steps:
[( 71 - 266 ) ÷ 266] x 100 = -73.31%
Formula
Percentage change = [(71 - 266) / 266] x 100
Subtract the new number by the original number
71 - 266 = -195
-195 ÷ 266 = -0.7330827067669173
-0.7330827067669173 x 100 = -73.31%