项目/年份 | 2017 | 2018 | 2019 | 2020 | 2021 |
营业收入 | 240,712,301 | 259,664,820 | 278,216,017 | 284,221,249 | 341,233,208 |
营业成本 | 162,510,418 | 188,164,557 | 197,913,928 | 212,839,592 | 264,525,999 |
占收入比重 | 67.51% | 72.46% | 71.14% | 74.89% | 77.52% |
销售费用 | 26738673 | 31085879 | 27,522,276 | 34,611,231 | 28,647,344 |
占收入比重 | 11.11% | 11.97% | 9.89% | 12.18% | 8.40% |
管理费用 | 7,510,102 | 9,571,639 | 9,531,361 | 9,264,148 | 10,266,283 |
占收入比重 | 3.12% | 3.69% | 3.43% | 3.26% | 3.01% |
研发费用 | 7,270,134 | 8377201 | 9,638,137 | 10,118,667 | 12,014,907 |
占收入比重 | 3.02% | 3.23% | 3.46% | 3.56% | 3.52% |
税金及附加 | 1,416,428 | 1,617,566 | 1,720,616 | 1,533,646 | 1,609,384 |
占收入比重 | 0.59% | 0.62% | 0.62% | 0.54% | 0.47% |
所得税费用 | 3,243,584 | 4,122,639 | 4,651,970 | 4,156,997 | 4,702,168 |
占收入比重 | 1.35% | 1.59% | 1.67% | 1.46% | 1.38% |