-17.72% is the change from 649 to 534
Calculation steps:
[( 534 - 649 ) ÷ 649] x 100 = -17.72%
Formula
Percentage change = [(534 - 649) / 649] x 100
Subtract the new number by the original number
534 - 649 = -115
-115 ÷ 649 = -0.17719568567026195
-0.17719568567026195 x 100 = -17.72%