-70.9% is the change from 914 to 266
Calculation steps:
[( 266 - 914 ) ÷ 914] x 100 = -70.9%
Formula
Percentage change = [(266 - 914) / 914] x 100
Subtract the new number by the original number
266 - 914 = -648
-648 ÷ 914 = -0.7089715536105032
-0.7089715536105032 x 100 = -70.9%