1285% is the change from 20 to 277
Calculation steps:
[( 277 - 20 ) ÷ 20] x 100 = 1285%
Formula
Percentage change = [(277 - 20) / 20] x 100
Subtract the new number by the original number
277 - 20 = 257
257 ÷ 20 = 12.85
12.85 x 100 = 1285%
Example