-74.66% is the change from 817 to 207
Calculation steps:
[( 207 - 817 ) ÷ 817] x 100 = -74.66%
Formula
Percentage change = [(207 - 817) / 817] x 100
Subtract the new number by the original number
207 - 817 = -610
-610 ÷ 817 = -0.7466340269277846
-0.7466340269277846 x 100 = -74.66%