-22.21% is the change from 707 to 550
Calculation steps:
[( 550 - 707 ) ÷ 707] x 100 = -22.21%
Formula
Percentage change = [(550 - 707) / 707] x 100
Subtract the new number by the original number
550 - 707 = -157
-157 ÷ 707 = -0.22206506364922207
-0.22206506364922207 x 100 = -22.21%