-70.87% is the change from 817 to 238
Calculation steps:
[( 238 - 817 ) ÷ 817] x 100 = -70.87%
Formula
Percentage change = [(238 - 817) / 817] x 100
Subtract the new number by the original number
238 - 817 = -579
-579 ÷ 817 = -0.7086903304773562
-0.7086903304773562 x 100 = -70.87%