-65.7% is the change from 866 to 297
Calculation steps:
[( 297 - 866 ) ÷ 866] x 100 = -65.7%
Formula
Percentage change = [(297 - 866) / 866] x 100
Subtract the new number by the original number
297 - 866 = -569
-569 ÷ 866 = -0.6570438799076213
-0.6570438799076213 x 100 = -65.7%