-7.89% is the change from 266 to 245
Calculation steps:
[( 245 - 266 ) ÷ 266] x 100 = -7.89%
Formula
Percentage change = [(245 - 266) / 266] x 100
Subtract the new number by the original number
245 - 266 = -21
-21 ÷ 266 = -0.07894736842105263
-0.07894736842105263 x 100 = -7.89%