-83.08% is the change from 266 to 45
Calculation steps:
[( 45 - 266 ) ÷ 266] x 100 = -83.08%
Formula
Percentage change = [(45 - 266) / 266] x 100
Subtract the new number by the original number
45 - 266 = -221
-221 ÷ 266 = -0.8308270676691729
-0.8308270676691729 x 100 = -83.08%