-75.52% is the change from 286 to 70
Calculation steps:
[( 70 - 286 ) ÷ 286] x 100 = -75.52%
Formula
Percentage change = [(70 - 286) / 286] x 100
Subtract the new number by the original number
70 - 286 = -216
-216 ÷ 286 = -0.7552447552447552
-0.7552447552447552 x 100 = -75.52%