-59.69% is the change from 645 to 260
Calculation steps:
[( 260 - 645 ) ÷ 645] x 100 = -59.69%
Formula
Percentage change = [(260 - 645) / 645] x 100
Subtract the new number by the original number
260 - 645 = -385
-385 ÷ 645 = -0.5968992248062015
-0.5968992248062015 x 100 = -59.69%