-21.46% is the change from 671 to 527
Calculation steps:
[( 527 - 671 ) ÷ 671] x 100 = -21.46%
Formula
Percentage change = [(527 - 671) / 671] x 100
Subtract the new number by the original number
527 - 671 = -144
-144 ÷ 671 = -0.21460506706408347
-0.21460506706408347 x 100 = -21.46%