-65.21% is the change from 917 to 319
Calculation steps:
[( 319 - 917 ) ÷ 917] x 100 = -65.21%
Formula
Percentage change = [(319 - 917) / 917] x 100
Subtract the new number by the original number
319 - 917 = -598
-598 ÷ 917 = -0.6521264994547438
-0.6521264994547438 x 100 = -65.21%