-63.65% is the change from 817 to 297
Calculation steps:
[( 297 - 817 ) ÷ 817] x 100 = -63.65%
Formula
Percentage change = [(297 - 817) / 817] x 100
Subtract the new number by the original number
297 - 817 = -520
-520 ÷ 817 = -0.6364749082007344
-0.6364749082007344 x 100 = -63.65%