-24.19% is the change from 277 to 210
Calculation steps:
[( 210 - 277 ) ÷ 277] x 100 = -24.19%
Formula
Percentage change = [(210 - 277) / 277] x 100
Subtract the new number by the original number
210 - 277 = -67
-67 ÷ 277 = -0.24187725631768953
-0.24187725631768953 x 100 = -24.19%