-70.44% is the change from 900 to 266
Calculation steps:
[( 266 - 900 ) ÷ 900] x 100 = -70.44%
Formula
Percentage change = [(266 - 900) / 900] x 100
Subtract the new number by the original number
266 - 900 = -634
-634 ÷ 900 = -0.7044444444444444
-0.7044444444444444 x 100 = -70.44%