-94.52% is the change from 310 to 17
Calculation steps:
[( 17 - 310 ) ÷ 310] x 100 = -94.52%
Formula
Percentage change = [(17 - 310) / 310] x 100
Subtract the new number by the original number
17 - 310 = -293
-293 ÷ 310 = -0.9451612903225807
-0.9451612903225807 x 100 = -94.52%