-75.61% is the change from 287 to 70
Calculation steps:
[( 70 - 287 ) ÷ 287] x 100 = -75.61%
Formula
Percentage change = [(70 - 287) / 287] x 100
Subtract the new number by the original number
70 - 287 = -217
-217 ÷ 287 = -0.7560975609756098
-0.7560975609756098 x 100 = -75.61%