-26.62% is the change from 417 to 306
Calculation steps:
[( 306 - 417 ) ÷ 417] x 100 = -26.62%
Formula
Percentage change = [(306 - 417) / 417] x 100
Subtract the new number by the original number
306 - 417 = -111
-111 ÷ 417 = -0.26618705035971224
-0.26618705035971224 x 100 = -26.62%