-66.32% is the change from 870 to 293
Calculation steps:
[( 293 - 870 ) ÷ 870] x 100 = -66.32%
Formula
Percentage change = [(293 - 870) / 870] x 100
Subtract the new number by the original number
293 - 870 = -577
-577 ÷ 870 = -0.6632183908045977
-0.6632183908045977 x 100 = -66.32%