-67.69% is the change from 817 to 264
Calculation steps:
[( 264 - 817 ) ÷ 817] x 100 = -67.69%
Formula
Percentage change = [(264 - 817) / 817] x 100
Subtract the new number by the original number
264 - 817 = -553
-553 ÷ 817 = -0.6768665850673194
-0.6768665850673194 x 100 = -67.69%