-69.29% is the change from 700 to 215
Calculation steps:
[( 215 - 700 ) ÷ 700] x 100 = -69.29%
Formula
Percentage change = [(215 - 700) / 700] x 100
Subtract the new number by the original number
215 - 700 = -485
-485 ÷ 700 = -0.6928571428571428
-0.6928571428571428 x 100 = -69.29%