-34.3% is the change from 968 to 636
Calculation steps:
[( 636 - 968 ) ÷ 968] x 100 = -34.3%
Formula
Percentage change = [(636 - 968) / 968] x 100
Subtract the new number by the original number
636 - 968 = -332
-332 ÷ 968 = -0.34297520661157027
-0.34297520661157027 x 100 = -34.3%