-74.65% is the change from 848 to 215
Calculation steps:
[( 215 - 848 ) ÷ 848] x 100 = -74.65%
Formula
Percentage change = [(215 - 848) / 848] x 100
Subtract the new number by the original number
215 - 848 = -633
-633 ÷ 848 = -0.7464622641509434
-0.7464622641509434 x 100 = -74.65%