-75.14% is the change from 865 to 215
Calculation steps:
[( 215 - 865 ) ÷ 865] x 100 = -75.14%
Formula
Percentage change = [(215 - 865) / 865] x 100
Subtract the new number by the original number
215 - 865 = -650
-650 ÷ 865 = -0.7514450867052023
-0.7514450867052023 x 100 = -75.14%