-22.89% is the change from 651 to 502
Calculation steps:
[( 502 - 651 ) ÷ 651] x 100 = -22.89%
Formula
Percentage change = [(502 - 651) / 651] x 100
Subtract the new number by the original number
502 - 651 = -149
-149 ÷ 651 = -0.22887864823348694
-0.22887864823348694 x 100 = -22.89%