-68.05% is the change from 817 to 261
Calculation steps:
[( 261 - 817 ) ÷ 817] x 100 = -68.05%
Formula
Percentage change = [(261 - 817) / 817] x 100
Subtract the new number by the original number
261 - 817 = -556
-556 ÷ 817 = -0.6805385556915544
-0.6805385556915544 x 100 = -68.05%