-68.44% is the change from 320 to 101
Calculation steps:
[( 101 - 320 ) ÷ 320] x 100 = -68.44%
Formula
Percentage change = [(101 - 320) / 320] x 100
Subtract the new number by the original number
101 - 320 = -219
-219 ÷ 320 = -0.684375
-0.684375 x 100 = -68.44%